CRYSTAL AND MOLECULAR STRUCTURES OF 2,4-DIMETHYL-9-HYDROXYPYRIDO[1,2-A]PYRIMIDINIUM PERCHLORATE: ITS COMPLEXES WITH PRASEODYMIUM, NEODYMIUM, SAMARIUM, AND EUROPIUM Article Koval'Chukova O.V., Strashnova S.B., Zaitev B.E., Bel'Skii V.K., Stash A.I., Nikitin S.V., Goncharov O.V., Shchelokov R.N. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. Vol. 26. 2000. P. 290-294
SYNTHESIS AND STRUCTURE OF D-METAL COMPLEXES WITH DERIVATIVES OF 9-OXYPYRIDO[1,2A]PYRIMIDINE-2-ONE. CRYSTAL STRUCTURE OF 4-METHYL-9-OXYPYRIDO[1,2A]PYRIMIDINE-2-ONE Article Kovalchukova O.V., Strashnova S.B., Zaitsev B.E., Goncharov O.V., Nikitin S.V., Bel'skii V.K., Stash A.I., De Sauza Almeido P. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. Vol. 26. 2000. P. 587-593
OXIDATIVE REACTIONS OF AZINES .2. SYNTHESIS AND MOLECULAR STRUCTURE OF 3,4-DIHYDROXY-1-METHYL-2-OXO-4-(GAMMA-PYRIDYL)PIPERIDINE Article Bekro I.A., Soldatenkov A.T., Stash A.I., Chernikova N.Y., Chernishev A.I. Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1996. P. 1372-1375