KAPFER, Joshua M. A Survey of Gravid Snakes at Several Sites in Southern Wisconsin. Reptiles & Amphibians, [S. l.], v. 17, n. 1, p. 22–25, 2010. DOI: 10.17161/randa.v17i1.16058. Disponível em: https://journals.ku.edu/reptilesandamphibians/article/view/16058.. Acesso em: 6 may. 2024.