Slyusarchuk VE. Necessary and sufficient conditions for the oscillation of solutions of nonlinear differential equations with pulse influence in a banach space. Ukr. Mat. Zhurn. [Internet]. 1999Jan.25 [cited 2024Jul.27];51(1):98–109. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4586