TY - JOUR AU - Bahadoran, Mahdi AU - Amiri, Iraj Sadegh TI - Double critical coupled ring resonator-based add–drop filters JO - Journal of Theoretical and Applied Physics VL - 0 IS - 3 SP - 213 EP - 220 PY - 2019 DO - 10.1007/s40094-019-00343-7 ER -