CHALOUPKA, Stanislav; HEIMGARTNER, Heinz. Pyridonderivate aus 3-Amino-2H-azirinen und Cyclopropenonen. CHIMIA, [S. l.], v. 32, n. 12, p. 468, 1978. DOI: 10.2533/chimia.1978.468. Disponível em: https://www.chimia.ch/chimia/article/view/1978_468. Acesso em: 6 apr. 2025.