TY - JOUR AU - Kumar, A. AU - Gallawa, R. C2 - Microwave and Optical Technology Letters DA - 1994-04-20 00:04:00 LA - en M1 - 7 PB - Microwave and Optical Technology Letters PY - 1994 TI - Bent Rectangular Core Waveguides: An Accurate Perturbation Approach ER -