TY - JOUR AU - Bahaa, G. M. TI - Optimal control problem and maximum principle for fractional order cooperative systems JO - Kybernetika PY - 2019 SP - 337 EP - 358 VL - 55 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14736/kyb-2019-2-0337/ DO - 10.14736/kyb-2019-2-0337 LA - en ID - 10_14736_kyb_2019_2_0337 ER -