CYCLOADDITION OF FURFURYLAMINES TO MALEIC ANHYDRIDE AND ITS SUBSTITUTED DERIVATIVES СтатьяZaytsev V.P., Mikhailova N.M., Airiyan I.K., Galkina E.V., Golubev V.D., Nikitina E.V., Zubkov F.I., Varlamov A.V.Chemistry of Heterocyclic Compounds. Том 48. 2012. С. 505-513