TY - JOUR AU - V. I. Levitas TI - Some relations for systems with dry friction JO - Doklady Akademii Nauk PY - 1985 SP - 52 EP - 56 VL - 280 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1985_280_1_a11/ LA - ru ID - DAN_1985_280_1_a11 ER -