TY - JOUR AU - Balachandran, K. AU - Somasundaram, D. TI - Relative controllability of nonlinear systems with time varying delays in control JO - Kybernetika PY - 1985 SP - 65 EP - 72 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1985__21_1_a6/ LA - en ID - KYB_1985__21_1_a6 ER -