@PROCEEDINGS {OKIGBO:1979e,
title = {Evaluation of plant interactions and productivity in complex mixtures as a basis for improved cropping systems design},
author = {Okigbo, B. },
booktitle = {International Intercroppings Workshop, ICRISAT, Hyderabad, January 10-13, 1979},
year = {1979},
month = {January},
}