TY - JOUR AU - E. A. Panasenko TI - Density principle and stability of sets of periodic solutions for differential inclusion JO - Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki PY - 2005 SP - 139 EP - 154 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VUU_2005_1_a9/ LA - ru ID - VUU_2005_1_a9 ER -