Gillard et al., 1982. Neth. J. Agric. Sci., 30: 161-171
Document reference
Gillard, P. ; Elberse, W. T., 1982. The effect of nitrogen and phosphorus supply on the competition between Cenchrus biflorus and Alysicarpus ovalifolius. Neth. J. Agric. Sci., 30: 161-171
