THANDAPANI E, PANDIAN S. OSCILLATION THEOREMS FOR NONLINEAR SECOND ORDER DIFFERENCE EQUATIONS WITH A NONLINEAR DAMPING TERM. Tamkang J. Math. [Internet]. 1995 Mar. 1 [cited 2024 Jul. 22];26(1):49-58. Available from: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4378