AIKAWA, T. 3-dimensional cohomology of the mod $p$ Steenrod algebra. MATHEMATICA SCANDINAVICA, [S. l.], v. 47, p. 91–115, 1980. DOI: 10.7146/math.scand.a-11876. Disponível em: https://www.mscand.dk/article/view/11876. Acesso em: 25 apr. 2024.