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Davila, P., & Külls, C. (2009). Combined application of 85-Kr, 39-Ar with CFCs in contaminated aquifers. EGU Geophysical Abstracts, , 1074.
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Külls, C., Marx, V., Bittner, A., Ellmies, R., & Seely, M. (2009). Environmental impacts on the hydrology of ephemeral streams and alluvial aquifers. In EGU Geophysical Abstracts (5517).
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Klaus, J., & Külls, C. (2009). Integrating residence time data in mixing cell modeling-Application to the Lower Kuiseb Dune area. In EGU Geophysical Abstracts (11026).
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Adolph, G., Römer, T., & Külls, C. Deriving complex groundwater age structure by combining age dating and analytic element modelling. In G-DAT 2008-Leipzig (12).
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Külls, C., Haering, M., Leistert, H., & Oster, H. Hydrological, physical and chemical constraints for groundwater age dating with CFC and SF6. In G-DAT 2008-Leipzig (29).
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Tröger, U., Dias, C. L., Guillaumon, J. R., Iritani, M. A., Külls, C., & Schuler, G. (2004). Remarks and new data about the recharge of the Guarani Aquifer System. In XXXIII IAH Congress, Abstracts, IAH, Mexico.
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Klock, H., Külls, C., & Udluft, P. (2001). Estimating recharge values using hydrochemical and geological data: a case study from the. In Impact of Human Activity on Groundwater Dynamics: Proceedings of an International Symposium (Symposium S3) Held During the Sixth Scientific Assembly of the International Association of Hydrological Sciences (IAHS) at Maastricht, The Netherlands, from 18 t (25).
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Külls, C. (2000). Resolving patterns of groundwater flow by inverse hydrochemical modelling in a semiarid Kalahari. In Tracers and Modelling in Hydrogeology: TraM’2000: Proceedings of TraM’2000, the International Conference on Tracers and Modelling in Hydrogeology Held at Liège, Belgium, in May 2000 (447).
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Külls, C., Salameh, E., & Udluft, P. (2000). Assessing water supplies for irrigation-availability of natural resources and sustainability indices. In Tropentag Hoffenheim.
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Udluft, P., & Külls, C. (2000). Mapping the availability and dynamics of groundwater recharge. Part 1: modelling techniques. In Proceedings of the Third Congress on Regional Geological Cartography and Information Systems (pp. 337–340).
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