1. Experiments with crop and pasture legumes—principles and practice;Brockwell,1980
2. Methods for legumes in glasshouses and controlled environment cabinets;Gibson,1980
3. The natural abundance of 15N in nodulating and non-nodulating isolines of soybeans;Kohl,1979
4. Isotopic fractionation in soybean nodules;Kohl,1982
5. Apports de la Géochimie Isotopique á la Connaissance du Cycle de l'Azote;Mariotti,1982