1. The pattern of dermal–vertebral correlation in snakes and amphisbaenians;Alexander;Zool. Med. Leiden,1966
2. Anatomical position of heart in snakes with vertical orientation: a new hypothesis;Badeer;Comp. Biochem. Physiol. A,1998
3. L'anatomie de Cerberus rhynchops;Bergman;Arch. Neerl. Zool.,1956
4. The anatomy of Coluber radiatus and Coluber melanurus;Bergman;Pac. Sci.,1961
5. Die Anatomie der Elapinae;Bergman;Z. Wiss. Zool.,1962