[1]Tochilkin,A.I.;Gracheva,I.N.;Kovel'man,I.R.;Prokof'ev,E.P.[ChemistryofHeterocyclicCompounds,1983,p.1093-1096][KhimiyaGeterotsiklicheskikhSoedinenii,1983,vol.19,#10,p.1373-1376]
[1]Tochilkin,A.I.;Gracheva,I.N.;Kovel'man,I.R.;Prokof'ev,E.P.[ChemistryofHeterocyclicCompounds,1983,p.1093-1096][KhimiyaGeterotsiklicheskikhSoedinenii,1983,vol.19,#10,p.1373-1376]
[1]Tochilkin,A.I.;Gracheva,I.N.;Kovel'man,I.R.;Prokof'ev,E.P.[ChemistryofHeterocyclicCompounds,1983,p.1093-1096][KhimiyaGeterotsiklicheskikhSoedinenii,1983,vol.19,#10,p.1373-1376]
[1]Tochilkin,A.I.;Gracheva,I.N.;Kovel'man,I.R.;Prokof'ev,E.P.[ChemistryofHeterocyclicCompounds,1983,p.1093-1096][KhimiyaGeterotsiklicheskikhSoedinenii,1983,vol.19,#10,p.1373-1376]