1. V. V. Lemanov, Ferroelectrics 238(2), 211 (2000).
2. V. V. Lemanov, S. N. Popov, and G. A. Pankova, Ferroelectrics 285(2), 207 (2003).
3. V. V. Lemanov, S. N. Popov, and G. A. Pankova, Fiz. Tverd. Tela (St. Petersburg) 44(10), 1840 (2002) [Phys. Solid State 44 (10), 1929 (2002)].
4. G. V. Gurskaya, The Molecular Structure of Amino Acids (Nauka, Moscow, 1956; Consultant Bureau, New York, 1968).
5. D. Vasilescu, R. Cornillon, and G. Mallet, Nature (London) 225(5233), 635 (1970).