Zhuvikin, G. V. Symmetry principles for periodic system of molecules / G. V. Zhuvikin ; Ray Hefferlin. - San Petersburgo, Rusia St. Petersburg University 1994 - 84 p. 29 cm. Bibliografía: p. 81-84. Subjects--Topical Terms: DINAMICA MOLECULAR.MOLECULAS. Dewey Class. No.: 541.22/Z61s