SYNTHESIS OF THE FIRST DIBENZO(PERHYDROTRIAZINO)-AZA-14-CROWN-4 ETHERS СтатьяHieu C.H., Anh L.T., Levov A.N., Nikitina E.V., Soldatenkov A.T.Chemistry of Heterocyclic Compounds. Том 45. 2009. С. 1406-1407