%0 Journal Article %A Karima Bessioud %A Abdelouaheb Ardjouni %A Ahcene Djoudi %T Positivity and Periodicity in Nonlinear Neutral Mixed Type Levin-Nohel Integro-Differential Equations %J Kragujevac Journal of Mathematics %D 2025 %P 253 %V 49 %N 2 %U http://geodesic.mathdoc.fr/item/KJM_2025_49_2_a5/ %G en %F KJM_2025_49_2_a5