LANDWEBER, P. S. Elements of Infinite Filtration in Complex Cobordism. MATHEMATICA SCANDINAVICA, [S. l.], v. 30, p. 223–226, 1972. DOI: 10.7146/math.scand.a-11077. Disponível em: https://www.mscand.dk/article/view/11077. Acesso em: 29 apr. 2024.