1. Population trends in Mojave Desert tortoises (Gopherus agassizii);Allison L. J.;Herpetological Conservation and Biology,2018
2. Lynx acceptance in Poland, Lithuania, and Estonia;Balčiauskas L.;European Journal of Wildlife Research,2010
3. Twenty years after Hines, Hungerford, and Tomera: A new meta-analysis of psycho-social determinants of pro-environmental behaviour
4. The third criterion of ecotourism: are ecotourists more concerned about sustainability than other tourists?
5. Berry K. H. Shields T. Woodman A. P. Campbell T. Roberson J. Bohuski K. &Karl A.1986.Changes in desert tortoise populations at the Desert Tortoise Research Natural Area between 1979 and 1985.Proceedings of the Desert Tortoise Council Symposium(pp.100–123). Desert Tortoise Council Publications.