@ARTICLE {HAUSER:2006m, title = {Groundnut/maize/cassava intercrop yield response to fallow age, cropping frequency and crop plant density on an Ultisol in southern Cameroon}, author = {Hauser, S. and Norgrove, L. and Nkem, J. }, journal = {Biological Agriculture and Horticulture}, year = {2006}, volume = {24}, pages = {275--292}, issn = {0144-8765}, note = {RTB; Root and Tuber; Cassava}, }