THERMAL-DECOMPOSITION OF TERBIUM TRINITRATE TETRAHYDRATE AND DYSPROSIUM TRINITRATE HEXAHYDRATE ArticleIVANOVEMIN B.N., ODINETS Z.K., DELPINO K., ZAITSEV B.E., EZHOV A.I.Russian Journal of Inorganic Chemistry. Vol. 20. 1975. P.. 2952-2956