1. Animal Species and Evolution;Mayr,1963
2. Studien zur Descendenz-Theorie. I. Ueber den Saison-Dimorphismus der Schmetterlinge;Weismann,1875
3. The Colours of Animals: Their Meaning and Use, Especially Considered in the Case of Insects;Poulton,1890
4. Weitere experimentelle Untersuchungen über Artveranderung, speziell über das Wesen quantitativer Artenunterschiede bei Daphniden;Woltereck;Verh. Deutsch Zool. Gesell.,1909
5. Phenotypic plasticity and the semantics of polyphenism: a historical review and current perspectives;Canfield,2009