| Rostal, D. C., Wibbels, T., Averill-Murray, R. C., Stitt, E. W., & Riedle, J. D. 2003, February 21—23 Temperature-dependent sex determination in north american tortoises, gopherus agassizii and gopherus polyphemus. Unpublished paper presented at 28th Annual Meeting and Symposium of the Desert Tortoise Council. |
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| Stitt, E. W., Swann, D. E., & Schwalbe, C. R. (2003). Signs of gila monster predation on desert tortoise nests. Sonoran Herpetologist, 16(12), 113–114. |
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