TY - JOUR AU - Kurina, G. K. TI - Optimal feedback control proportional to the system state can be found for non-causal descriptor systems (a remark on a paper by P. C. Müller) JO - International Journal of Applied Mathematics and Computer Science PY - 2002 SP - 591 EP - 593 VL - 12 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IJAMCS_2002_12_4_a13/ LA - en ID - IJAMCS_2002_12_4_a13 ER -