Degaspari, Nilton, et al. “Biology of <i>Sphenophorus levis< I> Vaurie, 1978 (Col.: Curculionldae), With Artificial Dieth and in the Field”. Pesquisa Agropecuaria Brasileira, vol. 22, no. 6, Apr. 2014, pp. 553-8, doi:10.1590/S1678-3921.pab1987.v22.14389.