ULBRICH, K. .- h. On modules induced or coinduced from Hopf subalgebras. MATHEMATICA SCANDINAVICA, [S. l.], v. 67, p. 177–182, 1990. DOI: 10.7146/math.scand.a-12328. Disponível em: https://www.mscand.dk/article/view/12328. Acesso em: 23 nov. 2024.