Shibatta, Oscar Akio, et al. “Reproduction of Duckbill Catfish Sorubim Lima in Captivity (Siluriformes, Pimelodidae) by Means of Hormonal Induction”. Semina: Ciências Agrárias, vol. 32, no. 1, Mar. 2011, pp. 363-72, doi:10.5433/1679-0359.2011v32n1p363.