MURTHY, K. N.; RAO, C. V. THEORY OF DIFFERENTIAL INEQUALITIES ASSOCIATED WITH $n$th ORDER NONLINEAR DIFFERENTIAL EQUATIONS AND THEIR APPLICATIONS TO THREE POINT BOUNDARY VALUE PROBLEMS. Tamkang Journal of Mathematics, [S. l.], v. 29, n. 2, p. 137–144, 1998. DOI: 10.5556/j.tkjm.29.1998.4285. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4285. Acesso em: 3 may. 2024.