[1]Daukshas,V.K.;Pyatrauskas,O.Yu.;Purvanyatskas,G.N.[ChemistryofHeterocyclicCompounds,1987,vol.23,#3,p.266-270][KhimiyaGeterotsiklicheskikhSoedinenii,1987,vol.23,#3,p.320-324]
[2]Daukshas,V.K.;Pyatrauskas,O.Yu.;Purvanyatskas,G.N.[ChemistryofHeterocyclicCompounds,1987,vol.23,#3,p.266-270][KhimiyaGeterotsiklicheskikhSoedinenii,1987,vol.23,#3,p.320-324]
[1]Daukshas,V.K.;Pyatrauskas,O.Yu.;Purvanyatskas,G.N.[ChemistryofHeterocyclicCompounds,1987,vol.23,#3,p.266-270][KhimiyaGeterotsiklicheskikhSoedinenii,1987,vol.23,#3,p.320-324]
[1]Daukshas,V.K.;Pyatrauskas,O.Yu.;Purvanyatskas,G.N.[ChemistryofHeterocyclicCompounds,1987,vol.23,#3,p.266-270][KhimiyaGeterotsiklicheskikhSoedinenii,1987,vol.23,#3,p.320-324]
[1]CurrentPatentAssignee:DUPONTDENEMOURSINC-US4577011,1986,A