Alibardi, Lorenzo (2005). “Differentiation of snake epidermis, with emphasis on the shedding layer”. Journal of Morphology264 (2): 178-90. doi:10.1002/jmor.10326. PMID15761820.
Hartline, PH (1971). “Physiological basis for detection of sound and vibration in snakes”. The Journal of Experimental Biology54 (2): 349-71. PMID5553415.
Alibardi, Lorenzo (2005). “Differentiation of snake epidermis, with emphasis on the shedding layer”. Journal of Morphology264 (2): 178-90. doi:10.1002/jmor.10326. PMID15761820.