@inproceedings{inproceedingsfe136e6c,
title   = {Field evaluation of biological nitrogen fixation in mouze-bean association using 15-N dilution methods},
author = {Silva, Paulo Marcos da and Tsai, Siu Mui and Lara Cabezas, W A R and Trivelin, Paulo Cesar Ocheuze},
year = {1989},
publisher = {Iowa State University},
booktitle   = {North American Symbiotic Nitrogen Fixation Conference}
}