MURTY, M. S. N. ON CONDITIONING FOR A GENERAL SYSTEM OF FOUR POINT BOUNDARY VALUE PROBLEMS. Tamkang Journal of Mathematics, [S. l.], v. 27, n. 3, p. 219–225, 1996. DOI: 10.5556/j.tkjm.27.1996.4337. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4337. Acesso em: 5 may. 2024.