TY - JOUR AU - Glüsing-Lüerssen, Heide AU - Hinrichsen, Diederich TI - The degeneration of reachable singular systems under feedback-transformations JO - Kybernetika PY - 1994 SP - 387 EP - 391 VL - 30 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1994__30_4_a1/ LA - en ID - KYB_1994__30_4_a1 ER -