Benassi, A.C. and Abrahão, J.T.M. 1991. Times of sowing and spacing on the production of lupine phytomass. Pesquisa Agropecuaria Brasileira. 26, 9 (Sep. 1991), 1517–1522. DOI:https://doi.org/10.1590/S1678-3921.pab1991.v26.3493.