AUTONOMY IN THE RUSSIAN FEDERATION: THEORY AND PRACTICE СтатьяKartashkin V.A., Abashidze A.Kh.International Journal on Minority and Group Rights. Том 10. 2003. С. 203-220
CHARACTERISTICS OF PHASE DIFFRACTION LATTICES, OBTAINED BY AN IONIC EXCHANGE METHOD СтатьяKORNYUSHENKO G.V., OSOVITSKII A.N.ЖУРНАЛ ТЕХНИЧЕСКОЙ ФИЗИКИ. Том 56. 1986. С. 1757-1763