1. EDTA dissolution of gypsum, anhydrite, and Ca-Mg carbonate;BODINE;Journal of Sedimentary Petrology,1973
2. Selective extraction of amorphous iron oxide by EDTA from a mixture of amorphous iron oxide, goethite, and hematite;BORGGAARD;Journal of Soil Science,1976
3. Selective extraction of amorphous iron oxides by EDTA from a Danish sandy loam;BORGGAARD;Journal of Soil Science,1979
4. Veranderung am Montmorillonit durch Einwirkung von 0.1 m AeDTE-Lösungen, 1 n NaCl-Lösung and 0.1 n Salzsäure;KÖSTER;Neues Jahrbuch der Mineralogie, Abhandlung,1973
5. Instrumental and chemical methods for characterization of soil clays;LINDGREEN;Den Kgl. Veterinaer- og LandbohØjskole. Årsskrift,1976