[1]Baumann,Hans;Duthaler,RudolfO.[HelveticaChimicaActa,1988,vol.71,p.1035-1041]
[1]Baumann,Hans;Duthaler,RudolfO.[HelveticaChimicaActa,1988,vol.71,p.1035-1041]
[1]Baumann,Hans;Duthaler,RudolfO.[HelveticaChimicaActa,1988,vol.71,p.1035-1041]
[1]Katritzky,AlanR.;Cundy,DarrenJ.;Chen,Jie[JournalofHeterocyclicChemistry,1994,vol.31,#2,p.271-276]
[1]Baumann,Hans;Duthaler,RudolfO.[HelveticaChimicaActa,1988,vol.71,p.1035-1041]
[2]Katritzky,AlanR.;Cundy,DarrenJ.;Chen,Jie[JournalofHeterocyclicChemistry,1994,vol.31,#2,p.271-276]