SYNTHESIS OF 1-TETRAZOLYL-SUBSTITUTED 2,3,4,9-TETRAHYDRO-1H-Β-CARBOLINES AND THEIR TRANSFORMATIONS INVOLVING ACTIVATED ALKYNES СтатьяVosskresensky L.G., Titov A.A., Samavati R., Kobzev M.S., Dorovatovskii P.V., Khrustalev V.N., Hong H.C., Thi T.A.D., Van T.N., Sorokina E.A., Varlamov A.V.Chemistry of Heterocyclic Compounds. Том 53. 2017. С. 575-581