STANĚK, Svatoslav. Leray-Schauder degree method in one-parameter functional boundary value problem. Annales Mathematicae Silesianae, [S. l.], v. 10, p. 111–125, 1996. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14198. Acesso em: 7 may. 2025.