CARVALHO, F. J. Craveiro De. A projective Gauss map associated with a hypersurface and a hyperplane. MATHEMATICA SCANDINAVICA, [S. l.], v. 50, p. 145–148, 1982. DOI: 10.7146/math.scand.a-11951. Disponível em: https://tidsskrift.dk/math/article/view/11951. Acesso em: 14 aug. 2026.