TY - JOUR AU - A. Berbache TI - Two limit cycles for a class of discontinuous piecewise linear differential systems with two pieces JO - Sibirskie èlektronnye matematičeskie izvestiâ PY - 2020 SP - 1488 EP - 1515 VL - 17 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SEMR_2020_17_a98/ LA - en ID - SEMR_2020_17_a98 ER -