Journal of Evolutionary Biology, 24(6), 1178-1187. Wiley Shea, N, Pen, I & Uller, T 2011, ' Three epigenetic information channels and their different roles in evolution. ', JOURNAL OF EVOLUTIONARY BIOLOGY, vol. 24, no. 6, pp. 1178-1187 . https://doi.org/10.1111/j.1420-9101.2011.02235.x