1. Effect of photostimulation on the wakefulness–sleep cycle in the common frog Rana temporaria;Aristakesian;Zhurnal Evoliutsionnoĭ Biokhimii i Fiziologii,2007
2. Sleep and wakefulness in the lizard Ctenosaura similis;Ayala- Guerrero;Boletín de Estudios Médicos y Biológicos,1987
3. Sleep in the tortoise Kinosternon sp;Ayala-Guerrero;Experientia,1987
4. Sleep patterns in the chelonian reptile Gopherus flavomarginatus;Ayala-Guerrero;Physiology and Behavior,1988
5. Characterización of the raphe nuclei of the reptile Ctenosaura pectinata;Ayala-Guerrero;Physiology and Behavior,1991