BENSLIMANE, Salim; GEORGIEV, Svetlin G.; MEBARKI, Karima. Expansion-compression fixed point theorem of Leggett-Williams type for the sum of two operators and applications for some classes of BVPs. Studia Universitatis Babeș-Bolyai Mathematica, [S. l.], v. 68, n. 3, p. 631–647, 2023. DOI: 10.24193/subbmath.2023.3.12. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/6458. Acesso em: 5 feb. 2025.