VETRO, Francesca. Fixed point results for ordered S-G-contractions in ordered metric spaces. Nonlinear Analysis: Modelling and Control, [S. l.], v. 23, n. 2, p. 269–283, 2018. DOI: 10.15388/NA.2018.2.8. Disponível em: https://www.journals.vu.lt/nonlinear-analysis/article/view/13324.. Acesso em: 29 apr. 2024.