المؤلفون: Vogelsang, Jan, Cordes, Thorben, Forthmann, Carsten, Steinhauer, Christian, Tinnefeld, Philip, Barbara, Paul F.

المصدر: Proceedings of the National Academy of Sciences of the United States of America, 2009 May . 106(20), 8107-8112.

URL الوصول: https://www.jstor.org/stable/40483045