TY - JOUR AU - S. Rolewicz TI - On universal time for the controllability of time-depending linear control systems JO - Studia Mathematica PY - 1976 SP - 133 EP - 138 VL - 59 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-59-2-133-138/ DO - 10.4064/sm-59-2-133-138 LA - en ID - 10_4064_sm_59_2_133_138 ER -