TY - JOUR AU - R. M. Hafez AU - Y. H. Youssri TI - Shifted Gegenbauer-Gauss Collocation Method for Solving Fractional Neutral Functional-Differential Equations with Proportional Delays JO - Kragujevac Journal of Mathematics PY - 2022 SP - 981 VL - 46 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KJM_2022_46_6_a11/ LA - en ID - KJM_2022_46_6_a11 ER -