[1]Zhungietu,G.I.;Dragalina,G.A.[ChemistryofHeterocyclicCompounds,1971,vol.7,p.932][KhimiyaGeterotsiklicheskikhSoedinenii,1971,vol.7,p.996]
[1]Dubonosov,A.D.;Sitkina,L.M.;Bren',V.A.;Bushkov,A.Ya.;Minkin,V.I.[ChemistryofHeterocyclicCompounds,1984,vol.20,#9,p.951-957][KhimiyaGeterotsiklicheskikhSoedinenii,1984,vol.20,#9,p.1171-1176]
[1]Dubonosov,A.D.;Sitkina,L.M.;Bren',V.A.;Bushkov,A.Ya.;Minkin,V.I.[ChemistryofHeterocyclicCompounds,1984,vol.20,#9,p.951-957][KhimiyaGeterotsiklicheskikhSoedinenii,1984,vol.20,#9,p.1171-1176]
[1]Dubonosov,A.D.;Sitkina,L.M.;Bren',V.A.;Bushkov,A.Ya.;Minkin,V.I.[ChemistryofHeterocyclicCompounds,1984,vol.20,#9,p.951-957][KhimiyaGeterotsiklicheskikhSoedinenii,1984,vol.20,#9,p.1171-1176]
[1]Dubonosov,A.D.;Sitkina,L.M.;Bren',V.A.;Bushkov,A.Ya.;Minkin,V.I.[ChemistryofHeterocyclicCompounds,1984,vol.20,#9,p.951-957][KhimiyaGeterotsiklicheskikhSoedinenii,1984,vol.20,#9,p.1171-1176]
