Sivan  Pearl, Oppenheim, Amos , and Balaban, Nathalie Q. 2011. ?Epigenetic Variability In A Predator-Prey System?. Transformations Of Lamarckism: From Subtle Fluids To Molecular Biology, Pp. 205. https://books.google.com/books?hl=en&lr=&id=kMvxCwAAQBAJ&oi=fnd&pg=PA205&dq=info:z_tKNygOcxQJ:scholar.google.com&ots=HJecrFLnBF&sig=vM39zUHYqij_AdAl3HgYBUVphJQ.