XIE, Dapeng; ZHOU, Hui; BAI, Chuanzhi; LIU, Yang; WU, Xingjie. TRIPLE POSITIVE SOLUTIONS FOR A THIRD-ORDER THREE-POINT BOUNDARY VALUE PROBLEM WITH SIGN-CHANGING GREEN’S FUNCTION. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 37, p. 519–530, 2017. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6782. Acesso em: 16 sep. 2026.