Media type: E-Article Title: Effect of Sodium and Calcium Cations on the Ion-Exchange Affinity of Organic Cations for Soil Organic Matter Contributor: Droge, Steven; Goss, Kai-Uwe Published: American Chemical Society (ACS), 2012 Published in: Environmental Science & Technology, 46 (2012) 11, Seite 5894-5901 Language: English DOI: 10.1021/es204449r ISSN: 0013-936X; 1520-5851 Origination: Footnote: