00536naa a2200121 a 450000100080000000500110000800800410001910000170006024501260007726000090020370000190021277301830023113018272001-04-24 1998 bl uuuu u00u1 u #d1 aLIEBEREI, R. aAgroecological profile of plants used as production factors and as management components in tropical polyculture systems. c19981 aGASPAROTTO, L. tIn: LIEBEREI, R.; BIANCHI, H.; VOB, K., ed. Proceedings of the third SHIFT-Workshop, Manaus march 15-19, 1998. Bonn: Bundesministerium fur Bildung und Forschung, 1998. p.307-312.