ADHIKARI, D. R. Invariance of Domain for Operators of Class AG(S+). The Nepali Mathematical Sciences Report, [S. l.], v. 34, n. 1-2, p. 11–17, 2016. DOI: 10.3126/nmsr.v34i1-2.29981. Disponível em: https://www.nepjol.info/index.php/nmsr/article/view/29981. Acesso em: 18 may. 2024.