NEW HETEROCYCLIC SYSTEMS BASED ON SUBSTITUTED 3',4'-DIHYDRO-1'H-SPIRO[CYCLOALKANE-1,2'-QUINOLINE] СтатьяMedvedeva S.M., Krysin M.Yu., Zubkov F.I., Nikitina E.V., Shikhaliev Kh.S.Chemistry of Heterocyclic Compounds. Том Vol 50. 2014.