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
SYNTHESIS OF PRASEODYMIUM BROMIDES СтатьяMOLODKIN A.K., EZHOV A.I., STREKACHINSKII A.B., DUDAREVA A.G.ЖУРНАЛ НЕОРГАНИЧЕСКОЙ ХИМИИ. Том 23. 1978. С. 3316-3320