Vargas, M.A. and Bezdicek, D.F. 1991. Influence of water potential on the enumeration of <i>Bradyrhizobium</i> sp (cicer) by Tn5 mutants (km-) and fluorescent antibody. Pesquisa Agropecuaria Brasileira. 26, 7 (Jul. 1991), 1081–1089. DOI:https://doi.org/10.1590/S1678-3921.pab1991.v26.3442.