@ARTICLE {LADIPO:1993a, title = {Nodulation in Pentaclethra macrophylla, a multipurpose tree of the humid lowlands of West Africa with potential for agroforestry}, author = {Ladipo, D. O. and Kang, B. and Swift, M. J. }, journal = {Nitrogen Fixing Tree Reports}, year = {1993}, volume = {11}, pages = {104--105}, }