1. Etude du comportement des Medicago annuelles;Adem,1974
2. Studies on the Ecology and Agronomy of Annual Medicago species;Adem,1977
3. The problem of hard seeds in subterranean clover;Aitken,1939
4. Factors affecting flower initiation of Trifolium subterraneum L.;Aitken;Aust. J. Agric. Res.,1955
5. pH and drought in relation to the dominance of subterranean clover of annual medics in mallee and wimmera soils;Aitken;J. Aust. Inst. Agric. Sci.,1954