Items where Author is "Dittmar, T."

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Number of items: 69.

Article

Simon, C. , Osterholz, H. , Koschinsky, A. and Dittmar, T. (2019)
Riverine mixing at the molecular scale - An ultrahigh-resolution mass spectrometry study on dissolved organic matter and selected metals in the Amazon confluence zone (Manaus, Brazil) ,

Organic Geochemistry, 129 , pp. 45-62 .

doi:https://doi.org/10.1016/j.orggeochem.2019.01.013 , hdl:10013/epic.4d39d797-e210-4544-94ba-857616179a6d

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Article

Waska, H. , Greskowiak, J. , Ahrens, J. , Beck, M. , Ahmerkamp, S. , Böning, P. , Brumsack, H. J. , Degenhardt, J. , Ehlert, C. , Engelen, B. , Grünenbaum, N. , Holtappels, M.

, Pahnke, K. , Marchant, H. K. , Massmann, G. , Meier, D. , Schnetger, B. , Schwalfenberg, K. , Simon, H. , Vandieken, V. , Zielinski, O. and Dittmar, T. (2019)
Spatial and Temporal Patterns of Pore Water Chemistry in the Inter-Tidal Zone of a High Energy Beach ,

Frontiers in Marine Science, 6 .

doi:https://doi.org/10.3389/fmars.2019.00154 , hdl:10013/epic.b02fa349-bc6c-4252-b3df-9d6541e7638a

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Article

Rossel, P. E. , Stubbins, A. , Rebling, T. , Koschinsky, A. , Hawkes, J. and Dittmar, T. (2017)
Thermally altered marine dissolved organic matter in hydrothermal fluids ,

Organic Geochemistry, 110 , pp. 73-86 .

doi:https://doi.org/10.1016/j.orggeochem.2017.05.003 , hdl:10013/epic.ada4ff60-2ee0-4bdf-b9a6-23b42e12797d

Article

Rossel, P. E. , Stubbins, A. , Hach, P. and Dittmar, T. (2015)
Bioavailability and molecular composition of dissolved organic matter from a diffuse hydrothermal system ,

Marine Chemistry, 177 (2), pp. 203-408 .

doi:https://doi.org/10.1016/ j.marchem.2015.07.002. , hdl:10013/epic.49999

Article

Hawkes, J. , Rossel, P. E. , Stubbins, A. , Butterfield, D. , Connelly, D. , Achterberg, E. P. , Koschinsky, A. , Chavagnac, V. , Hansen, C. T. , Bach, W. and Dittmar, T. (2015)
Efficient removal of recalcitrant deep-ocean dissolved organic matter during hydrothermal circulation ,

Nature Geoscience, 8 , pp. 856-860 .

doi:https://doi.org/10.1038/ngeo2543 , hdl:10013/epic.49996

Article

Rossel, P. E. , Vähätalo, A. V. , Witt, M. and Dittmar, T. (2013)
Molecular composition of dissolved organic matter from a wetland plant (Juncus effusus) after photochemical and microbial decomposition (1.25 yr): Common features with deep sea dissolved organic matter ,

Organic Geochemistry .

doi:https://doi.org/10.1016/j.orggeochem.2013.04.013 , hdl:10013/epic.50147

Article

D'Andrilli, J. , Dittmar, T. , Koch, B.

, Purcell, J. M. , Marshall, A. G. and Cooper, W. T. (2010)
Comprehensive characterization of marine dissolved organic matter by Fourier transform ion cyclotron resonance mass spectrometry with electrospray and atmospheric pressure photoionization ,

Rapid Communication in Mass Spectrometry 24, pp. 643-650 .

doi:https://doi.org/10.1002/rcm.4421 , hdl:10013/epic.34141

Article

Koch, B.

, Ludwichowski, K. U. , Kattner, G. , Dittmar, T. and Witt, M. (2008)
Advanced Characterization of Marine Dissolved Organic Matter by Combining Reversed-phase Liquid Chromatography and FT-ICR-MS ,

Marine Chemistry .

doi:https://doi.org/10.1016/j.marchem.2008.05.008 , hdl:10013/epic.31136

Article

Zemmelink, H. J. , Houghton, L. , Dacey, J. W. H. , Stefels, J. , Koch, B.

, Schröder, M. , Wisotzki, A. , Scheltz, A. , Thomas, D. N. , Papadimitriou, S. , Kennedy, H. , Kuosa, H. and Dittmar, T. (2008)
Stratification and the distribution of phytoplankton, nutrients, inorganic carbon and sulfur in the surface waters of Weddell Sea leads ,

Deep Sea Research II, 55 (8), pp. 988-999 .

doi:https://doi.org/10.1016/j.dsr2.2007.12.011 , hdl:10013/epic.30559

Article

Dittmar, T. , Koch, B.

, Hertkorn, N. and Kattner, G. (2008)
A simple and efficient method for the solid-phase extraction of dissolved organic matter (SPE-DOM) from seawater ,

Limnology and Oceanography: Methods, 6 , pp. 230-235 .

hdl:10013/epic.30564

Article

Koch, B.

, Dittmar, T. , Witt, M. and Kattner, G. (2007)
Fundamentals of molecular formula assignment to ultrahigh resolution mass data of natural organic matter ,

Analytical Chemistry 79(4), pp. 1758-1763 .

doi:https://doi.org/10.1021/ac061949s , hdl:10013/epic.25849

Article

Wu, Y. , Dittmar, T. , Ludwichowski, K. U. , Kattner, G. , Zhang, J. , Zhu, Z. Y. and Koch, B.

(2007)
Tracing suspended organic nitrogen from the Yangtze River catchment into the East China Sea ,

Marine chemistry, 107(3)377., 367 .

doi:https://doi.org/10.1016/j.marchem.2007.01.022 , hdl:10013/epic.28497

Article

Dittmar, T. , Whitehead, K. , Minor, E. C. and Koch, B.

(2007)
Tracing terrigenous dissolved organic matter and its photochemical decay in the ocean by using liquid chromatography/mass spectrometry ,

Marine chemistry, 107 (3), pp. 378-387 .

doi:https://doi.org/10.1016/j.marchem.2007.04.006 , hdl:10013/epic.28496

Article

Koch, B.

and Dittmar, T. (2006)
From mass to structure: An aromaticity index for high-resolution mass data of natural organic matter ,

Rapid communications in mass spectrometry, 20 (5), pp. 926-932 .

doi:https://doi.org/10.1002/rcm.2386 , hdl:10013/epic.24187

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Article

Dittmar, T. , Hertkorn, N. , Kattner, G. and Lara, R. J. (2006)
Mangroves, a major source of dissolved organic carbon to the oceans ,

Global biogeochemical cycles, 20, GB1012 .

doi:https://doi.org/10.1029/2005GB002570 , hdl:10013/epic.24073

Article

Dittmar, T. and Koch, B.

(2006)
Thermogenic organic matter dissolved in the abyssal ocean ,

Marine Chemistry, 102 (3), pp. 208-217 .

doi:https://doi.org/10.1016/j.marchem.2006.04.003 , hdl:10013/epic.23847

Article

Koch, B.

, Witt, M. , Engbrodt, R. , Dittmar, T. and Kattner, G. (2005)
Molecular formulae of marine and terrigenous dissolved organic matter detected by Electrospray Ionisation Fourier Transform Ion Cyclotron Resonance Mass Spectrometry ,

Geochimica et cosmochimica acta, 69 (13), pp. 3299-3308 .

doi:https://doi.org/10.1016/j.gca.2005.02.027 , hdl:10013/epic.21218

Article

Dittmar, T. (2004)
Evidence for terrigenous dissolved organic nitrogen in the Arctic deep-sea ,

Limnology and oceanography, 49 (1), pp. 148-156 .

hdl:10013/epic.19258

Article

Cohen, M. C. L. , Lara, R. J. , Szlafsztein, C. and Dittmar, T. (2004)
Mangrove inundation and nutrient dynamics from a GIS perspective ,

Wetlands Ecology and Management, 12 (2), pp. 81-86 .

doi:https://doi.org/10.1023/B:WETL.0000021668.25445.41 , hdl:10013/epic.22668

Article

Dittmar, T. and Kattner, G. (2003)
Recalcitrant dissolved organic matter in the ocean: major contribution of small amphiphilics ,

Marine chemistry, 82 , pp. 115-123 .

doi:https://doi.org/10.1016/S0304-4203(03)00068-9 , hdl:10013/epic.18032

Article

Dittmar, T. and Kattner, G. (2003)
The biogeochemistry of the river and shelf ecosystem of the Arctic Ocean: a review ,

Marine chemistry, 83 , pp. 103-120 .

doi:https://doi.org/10.1016/S0304-4203(03)00105-1 , hdl:10013/epic.20179

Article

Dittmar, T. and Lara, R. J. (2001)
Do mangroves rather than rivers provide nutrients to coastal environments south of the Amazon River? Evidence from long-term flux measurements ,

Marine Ecology-Progress Series, 213 , pp. 67-77 .

hdl:10013/epic.15020

Article

Dittmar, T. and Lara, R. J. (2001)
Driving Forces Behind Nutrient and Organic Matter Dynamics in a Mangrove Tidal Creek in North Brazil ,

Estuarine coastal and shelf science, 52 , pp. 249-259 .

doi:https://doi.org/10.1006/ecss.2000.0743 , hdl:10013/epic.15018

Article

Dittmar, T. and Lara, R. J. (2001)
Molecular evidence for lignin degradation in sulfate-reducing mangrove sediments (Amazonia, Brazil) ,

Geochimica et Cosmochimica Acta, 65 (9), pp. 1417-1428 .

doi:https://doi.org/10.1016/S0016-7037(00)00619-0 , hdl:10013/epic.15019

Article

Dittmar, T. , Fitznar, H. P. and Kattner, G. (2001)
Origin and biogeochemical cycling of organic nitrogen in the eastern Arctic Ocean as evident from D- and L-amino acids ,

Geochimica et Cosmochimica Acta, 65 (22), pp. 4103-4114 .

hdl:10013/epic.14898

Article

Dittmar, T. and Birkicht, M. (2001)
Regeneration of nutrients in the northern Benguela upwelling and the Angola-Benguela Front areas ,

South african journal of science, 97, 2001 , pp. 239-246 .

hdl:10013/epic.15173

Article

Dittmar, T. , Lara, R. J. and Kattner, G. (2001)
River or mangrove? Tracing major organic matter sources in tropical Brasilian coastal waters ,

Marine Chemistry, 73 , pp. 253-271 .

hdl:10013/epic.14799

Article

Cohen, M. C. , Lara, R. J. , Szafsztein, C. F. and Dittmar, T. (2000)
Digital elevation model as a GIS tool for the analysis of mangrove coasts, Amazon region, Brazil ,

International Journal of Environmental Creation, 3 , pp. 31-41 .

hdl:10013/epic.19257

Article

Cohen, M. C. L. , Lara, R. J. , Ramos, J. F. F. and Dittmar, T. (1999)
Factors influencing the variability of Mg, Ca and K in waters of a mangrove creek in Braganca, North Brazil. ,

Mangroves and salt marshes, 3 , pp. 9-15 .

hdl:10013/epic.17653

Article

Lara, R. J. and Dittmar, T. (1999)
Nutrient dynamics in a mangrove creek (North Brazil) during the dry season. ,

Mangroves and salt marshes, 3 , pp. 185-195 .

hdl:10013/epic.17647

Inbook

Koch, B.

, Dittmar, T. and Lara, R. J. (2010)
The biogeochemistry of the Caeté mangrove-shelf system ,

Mangrove Dynamics and Management in North Brazil / Ulrich Saint-Paul; Horacio Schneider (eds.) Berlin [u.a.] : Springer. (Ecological Studies ; 211), ISBN: 978-3-642-13456-2 .

hdl:10013/epic.35954

Inbook

Dittmar, T. , Koch, B.

and Jaffé, R. (2009)
Tools for studying biogeochemical connectivity among tropical coastal ecosystems ,

Ecological Connectivity among Tropical Coastal Ecosystems / Ivan Nagelkerken. Berlin : Springer Netherland, ISBN: 978-90-481-2405-3 (P .

doi:https://doi.org/10.1007/978-90-481-2406-0_12 , hdl:10013/epic.33341

Inbook

Dittmar, T. , Cherrier, J. and Ludwichowski, K. U. (2009)
The analysis of amino acids in seawater ,

Practical guidelines for the analysis of seawater / ed. by Oliver Wurl Boca Raton [u.a.] ; CRC Press, ISBN: 978-1-4200-7306-5 .

hdl:10013/epic.32842

Thesis

Thesis -PhD

Dittmar, T. (1999)
Outwelling of organic matter and nutrients from a mangrove in North Brazil: Evidence from organic tracers and flux measurements ,

PhD thesis, Dissertation, University of Bremen, Germany.

hdl:10013/epic.18033

Conference

Conference -Talk

Niggemann, J. , Gerdts, G.

and Dittmar, T. (2013)
Diversity of dissolved organic matter as a direct consequence of micropbial diversity? ,

ASLO 2013 Aquatic Sciences Meeting, New Orleans, Lousiana, USA, 2013 - unspecified .

hdl:10013/epic.41096

Conference -Poster

Helber, S. , Schmidt, G. M. , Dittmar, T. , Khokiattiwong, S. and Richter, C.

(2012)
Nutrient interactions between sponges and corals ,

YOUMARES 3, Lübeck, Germany, 12 September 2012 - 14 September 2012 .

hdl:10013/epic.41002

Conference -Talk

Niggemann, J. , Gerdts, G.

and Dittmar, T. (2011)
Geo-metabolomics A key for understanding function and reactivity of dissolved organic matter ,

Goldschmidt Conference 2011, Prague. .

hdl:10013/epic.38072

Conference -Talk

Koch, B.

, Ludwichowski, K. U. , Kattner, G. , Dittmar, T. and Witt, M. (2008)
Characterization of dissolved organic matter: major advances by combining reversed-phase liquid chromatography and FT-ICR-MS ,

10th International Estuarine Biogeochemistry Symposium, May 18-22, Xiamen, China. .

hdl:10013/epic.30586

Conference -Poster

Ingendoh, A. , Koch, B.

, Dittmar, T. , Witt, M. and Kattner, G. (2008)
Resolving unresolved complex mixtures: offline coupling of liquid chromatography and Fourier transform ion cyclotron resonance mass spectrometry ,

27th International Symposium on Chromatography, 21-25 Sep, 2008, Münster, Germany. .

hdl:10013/epic.31347

Conference -Talk

Kattner, G. , Dittmar, T. , Koch, B.

and Hertkorn, N. (2008)
Solid-phase extraction of dissolved organic matter (SPE-DOM) from river, estuarine and open ocean waters ,

10th International Estuarine Biogeochemistry Symposium, 18-22 May, Xiamen, China. .

hdl:10013/epic.31031

Conference -Invited talk

Koch, B.

, Witt, M. , Ludwichowski, K. U. , Liu, S. , Dittmar, T. and Kattner, G. (2007)
Advanced analytical approaches for the molecular characterization of dissolved organic matter ,

ASLO aquatic sciences meeting, 5-08 Feb, Santa Fé, New Mexico, USA. .

hdl:10013/epic.26271

Conference -Invited talk

Dittmar, T. , Koch, B.

, Kattner, G. , Whitehead, K. and Cooper, W. T. (2007)
Biogeochemistry of dissolved organic matter in mangrove-fringed coastal environments ,

European Geosciences Union, General Assembly, 15-20 Apr, Vienna, Austria. .

hdl:10013/epic.26272

Conference -Talk

Koch, B.

, Dittmar, T. and Witt, M. (2007)
Rapid molecular changes in fresh marine dissolved organic matter during early diagenesis ,

3rd International Conference on Mechanisms of Organic Matter Stabilisation and Destabilisation in Soils and Sediments, 23-26 Sept, Adelaide, Australia. .

hdl:10013/epic.28196

Conference -Poster

Koch, B.

, Dittmar, T. , Witt, M. , Friedrich, J. and Kattner, G. (2007)
Resolving unresolved complex mixtures: Offline coupling of liquid chromatography and Fourier Transform Ion Cyclotron Resonance Mass Spectrometry ,

8th European FTMS conference. 28 Aug - 1 Sep 2007, Moscow, Russia. .

hdl:10013/epic.28805

Conference -Poster

Koch, B.

, Dittmar, T. , Witt, M. and Kattner, G. (2007)
Resolving unresolved complex mixtures: Offline coupling of liquid chromatography and Fourier Transform ion cyclotron resonance mass spectrometry ,

55th ASMS Conference on Mass Spectrometry, 03-07 JunIndianapolis, USA. .

hdl:10013/epic.26420

Conference -Talk

Dittmar, T. , Koch, B.

, Tremblay, L. B. , Kattner, G. and Cooper, W. T. (2007)
The dynamic and molecular structure of dissolved organic matter in ice-covered oceans ,

ASLO aquatic sciences meeting, 05-09 Feb, Santa Fé, New Mexico, USA. .

hdl:10013/epic.26273

Conference -Invited talk

Koch, B.

, Dittmar, T. , Passow, U. and Kattner, G. (2006)
Diagenesis of marine dissolved organic matter: a molecular approach ,

European Geosciences Union, General Assembly 2006, 02-07 Apr., Vienna, Austria. .

hdl:10013/epic.24422

Conference -Poster

Koch, B.

, Witt, M. and Dittmar, T. (2006)
From mass to structure: Analysis of aromaticity of Suwannee river fulvic acid by Fourier Transform ion cyclotron resonance mass spectrometry ,

54th ASMS Conference on Mass Spectrometry, 28 May-01 June, Seattle, USA. .

hdl:10013/epic.25365

Conference -Poster

Koch, B.

, Dittmar, T. , Witt, M. and Kattner, G. (2006)
From mass to structure: Thermogenic organic matter dissolved in the ocean ,

1st International symposium on ultrahigh resolution mass spectrometry for the molecular level analysis of complex BioGeoSystems, 6-7 Nov, GSF, Munich, Germany. .

hdl:10013/epic.26270

Conference -Poster

Kattner, G. , Koch, B.

, Witt, M. and Dittmar, T. (2006)
From mass to structure: thermogenic organic matter dissolved in the ocean ,

European Geosciences Union, General Assembly 2006, 2-7 April, Vienna, Austria. .

hdl:10013/epic.25259

Conference -Invited talk

Dittmar, T. , Cooper, W. T. , Koch, B.

and Kattner, G. (2006)
How important are intertidal ecosystems for global biogeochemical cycles? Molecular and isotopic evidence for major outwelling of photo-bleached dissolved organic matter from mangroves ,

Invited lecture, AGU Joint Assembly, 23-26 May, Baltimore, Maryland, USA. .

hdl:10013/epic.25685

Conference -Poster

Kattner, G. , Koch, B.

, Dittmar, T. , Witt, M. and Hertkorn, N. (2006)
Modification of terrestrial dissolved organic matter in tropical coastal waters ,

9th Int. Estuarine Biogeochemistry Symposium, 7-11 May, Warnemuende, Germany. .

hdl:10013/epic.25364

Conference -Talk

Wu, Y. , Kattner, G. , Zhang, J. , Ludwichowski, K. U. , Koch, B.

, Zhu, Z. Y. and Dittmar, T. (2006)
Transport and digenesis of terrestrial particulate organic matter from coastal to ocean waters in the East China Sea ,

9th Int. Estuarine Biogeochemistry Symposium, 7-11 May, Warnemuende, Germany. .

hdl:10013/epic.25420

Conference -Invited talk

Koch, B.

, Kattner, G. , Dittmar, T. , Hertkorn, N. , Schmitt-Kopplin, P. and Witt, M. (2006)
Weighing electrons: Molecular organic biogeochemistry by means of FT-ICR-MS ,

Invited lecture, 9th Int. Estuarine Biogeochemistry Symposium, 7-11 May, Warnemuende, Germany. .

hdl:10013/epic.25363

Conference -Talk

Dittmar, T. , Kattner, G. , Hertkorn, N. and Koch, B.

(2005)
Mangroves, a major source of dissolved organic matter to the oceans ,

ASLO Summer Meeting, 19-24 June, Santiago de Compostela, Spain. .

hdl:10013/epic.23455

Conference -Poster

Koch, B.

, Witt, M. , Engbrodt, R. , Dittmar, T. and Kattner, G. (2005)
Molecular formulae of refractory marine and terrigenous dissolved organic matter detected by ESI FT-ICR-MS ,

ASLO summer meeting, 19-24 Jun., Santiago, Spain. .

hdl:10013/epic.23344

Conference -Talk

Koch, B.

, Dittmar, T. and Kattner, G. (2005)
New molecular tracers for source and process characterization for marine DOM ,

ASLO summer meeting, 19-24 Jun., Santiago, Spain. .

hdl:10013/epic.23345

Conference -Invited talk

Koch, B.

, Dittmar, T. , Witt, M. and Kattner, G. (2005)
Sources, degradation and formation of refractory marine dissolved organic matter from an ultrahigh resolution perspective ,

230th American Chemical Society National meeting, 28 Aug.-01 Sept., Washington D.C., USA. .

hdl:10013/epic.23807

Conference -Talk

Koch, B.

, Dittmar, T. , Engbrodt, R. , Graeve, M.

, Witt, M. and Kattner, G. (2004)
Composition of Marine Dissolved Organic Matter: First Chemical Formulas as detected by Fouriertransform Mass Spectrometry ,

7th European Workshop on Fouriertransform Mass Spectrometry, 28 Mar.-01 Apr., Konstanz, Germany. .

hdl:10013/epic.20829

Conference -Poster

Dittmar, T. , Koch, B.

, Hertkorn, N. , Whitehead, K. , Cooper, W. and Kattner, G. (2004)
Establishing a molecular evidence for the outwelling of dissolved organic matter from mangroves ,

Gordon Research Conference, Organic Geochemistry, 8-13 Aug., Plymouth, NH, USA. .

hdl:10013/epic.21462

Conference -Talk

Kattner, G. , Koch, B.

, Dittmar, T. and Engbrodt, R. (2004)
New analytical approaches in biogeochemistry research of dissolved organic matter ,

8th International Estuarine Biogeochemistry Symposium, Solomons, Maryland, USA. .

hdl:10013/epic.21050

Conference -Poster

Koch, B.

, Engbrodt, R. , Dittmar, T. , Daberkow, T. , Witt, M. and Kattner, G. (2004)
Structural modification of marine dissolved organic matter on its way to the deep Weddell Sea ,

SCAR, Open Science Conference, 27-28 July, Bremen, Germany. .

hdl:10013/epic.21395

Conference -Poster

Dittmar, T. , Kattner, G. , Engbrodt, R. and Koch, B.

(2003)
Molecular evidence for the fate of terrigenous DOC and DON in the ocean ,

Symposium on New Approaches in Marine Organic Biogeochemistry, Friday Habor, WA, USA. .

hdl:10013/epic.20478

Conference -Talk

Dittmar, T. and Kattner, G. (2003)
Terrigenous dissolved organic nitrogen in the Arctic Ocean: Transport from rivers to the deep-sea ,

EGS-AGU-EUG Joint Assembly, Nice, France. .

hdl:10013/epic.20477

Conference -Poster

Koch, B.

, Engbrodt, R. , Dittmar, T. , Hartmann, C. and Kattner, G. (2003)
A contribution to chemical and structural characteristics of marine dissolved organic matter ,

Gordon Research Conference, Chemical Oceanography, 10-15 Aug., Tilton, USA. .

hdl:10013/epic.19689

Conference -Talk

Dittmar, T. and Kattner, G. (2002)
Biogeochemical characteristic of terrestrial versus marine-derived dissolved organic matter in the Arctic Ocean ,

ASLO 2002 Summer Meeting, Victoria, Kanada. .

hdl:10013/epic.20474

Conference -Poster

Kattner, G. , Engbrodt, R. and Dittmar, T. (2001)
Biogeochemical characteristics of dissolved organic matter in the Arctic Ocean ,

Progress in Arctic Ocean Research Over the Past Decades, Stockholm, Schweden. .

hdl:10013/epic.20471

Conference -Poster

Kattner, G. , Dittmar, T. and Fitznar, H. P. (2001)
Cycling of organic nitrogen in the Arctic Ocean as evident from D- and L-amino acids ,

2001 An Ocean Odyssey, Mar del Plata, Argentinien. .

hdl:10013/epic.20468

Conference -Poster

Dittmar, T. , Lara, R. J. and Kattner, G. (2001)
Major organic matter sources in tropical Brazilian coastal waters: river or mangrove ,

2001 An Ocean Odyssey, Mar del Plata, Argentinien. .

hdl:10013/epic.20467

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