MURTHY KN, RAO CV. THEORY OF DIFFERENTIAL INEQUALITIES ASSOCIATED WITH $n$th ORDER NONLINEAR DIFFERENTIAL EQUATIONS AND THEIR APPLICATIONS TO THREE POINT BOUNDARY VALUE PROBLEMS. Tamkang J. Math. [Internet]. 1998 Jun. 1 [cited 2024 May 4];29(2):137-44. Available from: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4285