TY - JOUR AU - L. A. Manita TI - Optimal control of an oscillator with variable stiffness JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1993 SP - 89 EP - 91 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1993_6_a21/ LA - ru ID - VMUMM_1993_6_a21 ER -