@INPROCEEDINGS {MOORMANN:1978c, title = {Land and rice in Africa: constraints and potentials}, author = {Moormann, F. R. and Veldkamp, W. J. }, booktitle = {Rice in Africa: proceedings of a conference held at the International Institute of Tropical Agriculture, Ibadan, Nigeria, 7-11 March, 1977}, year = {1978}, month = {January}, pages = {29--43}, publisher = {Academic Press}, location = {London, UK}, }