“Evaluation of the semen characteistics after induced spermiation in the bullfrog Lithobates catesbeianus - doi: 10.4025/actascibiolsci.v35i3.14780” (2013) Acta Scientiarum. Biological Sciences, 35(3), p. 305–310. doi:10.4025/actascibiolsci.v35i3.14780.