JENSEN, S. T. Picard schemes of quotients by finite commutative group schemes. MATHEMATICA SCANDINAVICA, [S. l.], v. 42, p. 197–210, 1978. DOI: 10.7146/math.scand.a-11748. Disponível em: https://www.mscand.dk/article/view/11748. Acesso em: 3 may. 2024.