Bonnet X, Akoka S, Shine R, Pourcelot L. Disappearance of eggs during gestation in a viviparous snake (<i>Vipera aspis</i>) detected using non-invasive techniques. Acta Herpetol. [Internet]. 2008 Dec. 31 [cited 2024 Nov. 22];3(2):129-37. Available from: https://oaj.fupress.net/index.php/ah/article/view/1543