TY - JOUR AU - Kulczycki, Piotr AU - Wisniewski, Rafael AU - Kowalski, Piotr AU - Krawiec, Karol TI - Hard and soft sub-time-optimal controllers for a mechanical system with uncertain mass JO - Control and Cybernetics PY - 2004 SP - 573 EP - 587 VL - 33 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CC_2004_33_4_a4/ LA - en ID - CC_2004_33_4_a4 ER -