1. Symmetry Through the Eyes of a Chemist;Hargittai,1986
2. Relation between structure and sequence of hemoglobin;Perutz;Nature,1962
3. Beauty and ugliness or fright and disgust and abstractions closely related to our human biological, social and cultural heritage. Whatever symmetric patterns are beared by an object or a living creature if they are able to endanger us, it will exert a repulsing effect on human beings. Even within bilateral symmetry, we got used to certain proportions, and deviations may give us the impression of ugliness. (See some paintings of Hieronymus Bosch.)
4. See entries for the mechanism of sight and for strabismus in any encyclopaedia of biology, such as e.g., Biológiai Lexikon (Hungarian) (Ed. Straub F. Brúnó). Akadémiai Kiadó, Budapest (1978).
5. The Selfish Gene;Dawkins,1975