Bezerra, A. A. de C., Távora, F. J. A. F., Filho, F. R. F., & Ribeiro, V. Q. (2010). Canopy and yield characteristics of a bunch-type cowpea under different population densities. Pesquisa Agropecuaria Brasileira, 44(10), 1239–1245. https://doi.org/10.1590/S1678-3921.pab2009.v44.1442