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Hsiou, Annie S.; Albino, Adriana M. (1 December 2009). "Presence of the genus Eunectes (Serpentes, Boidae) in the Neogene of Southwestern Amazonia, Brazil". Journal of Herpetology. 43 (4): 612–619. doi:10.1670/08-295.1. S2CID55097666.
Pizzatto, Lígia; Marques, Otavio A. V. (2007). "Reproductive ecology of Boine snakes with emphasis on Brazilian species and a comparison to Pythons". South American Journal of Herpetology. 2 (2): 107–122. doi:10.2994/1808-9798(2007)2[107:reobsw]2.0.co;2. S2CID86033920.
Rivas, Jesús A.; Burghardt, Gordon M. (2001). "Understanding sexual size dimorphism in snakes: wearing the snake's shoes". Animal Behaviour. 62 (3): F1–F6. doi:10.1006/anbe.2001.1755. S2CID5374924.