Jablonka, E., & Lamb, M. J. (2006). Evolution in four dimensions: Genetic, epigenetic, behavioral, and symbolic variation in the history of life. Cambridge, MA: MIT Press. См. также: Strohman, R. (1995). Linear genetics, non-linear epigenetics: Complementary approaches to understanding complex diseases. Integrative Physiological and Behavioral Science, 30 (4), 273–282.