Voretus is correct this is not an appropriate external link I have checked the guidelines and think this link is highly relevant also I want to add that I havent found a better article which tackles ontogenesis recapitulates phylogenesis postulate There are also some extremely important quotes about Jungs Nazi involvement I think the Link is worth just for those quotes check the notes I think they are highly relevant to the whole corpus I am sure they cannot be included in the main Encyclopedia article but a link serves good in such a case  please correct me if I am wrong