1. D.M. Edgington, M. Gustin, K.A. Orlandini, J.A. Robins, L.Z. Granina and M.A. Grachev, Abstr. of INTAS-RAS Intern. Conf., Baikal as a natural laboratory for Global Change, Vol. 2 (Lisna Publ., Irkutsk) p. 9.
2. Radiogenic isotope geology;Dickin,1995