Existence of periodic solutions for two types of second-order nonlinear neutral integro-differential equations with infinite distributed mixed-delays
Hocine Gabsi، Abdelouaheb Ardjouni، Ahcéne Djoudi
Advances in the Theory of Nonlinear Analysis and its Applicationالمجلّد 2، (4)، الصفحات 184-1942018مقال وصول مفتوح