[1]
Monteiro, J. de A. 1994. Degree of maize production concentration in tile South-Central region of brazil. Pesquisa Agropecuaria Brasileira. 29, 7 (Jul. 1994), 1007–1017. DOI:https://doi.org/10.1590/S1678-3921.pab1994.v29.4142.