VÄTH, M. An axiomatic approach to a coincidence index for noncompact function pairs. Topological Methods in Nonlinear Analysis, [S. l.], v. 16, n. 2, p. 307–338, 2000. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2000.043. Acesso em: 22 jul. 2024.