TY - JOUR AU - Mansouri, Bouzid AU - Ardjouni, Abdelouaheb AU - Djoudi, Ahcene TI - Analysis of periodic solutions for nonlinear coupled integro-differential systems with variable delays JO - Commentationes Mathematicae Universitatis Carolinae PY - 2022 SP - 51 EP - 68 VL - 63 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2022.007/ DO - 10.14712/1213-7243.2022.007 LA - en ID - 10_14712_1213_7243_2022_007 ER -