AUTONOMY IN THE RUSSIAN FEDERATION: THEORY AND PRACTICE ArticleKartashkin V.A., Abashidze A.Kh.International Journal on Minority and Group Rights. Том 10. 2003. С. 203-220
NONCONDENSED POLYPIPERIDINE SYSTEMS ArticleProstakov N.S., Mikheeva N.N., Pleshakov V.G.Chemistry of Heterocyclic Compounds. Том 5. 1972. С. 755-758