%0 Journal Article %A Jaume Llibre %T Limit cycles in continuous and discontinuous piecewise linear differential systems with two pieces separated by a straight line %J Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica %D 2019 %P 3-12 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/BASM_2019_2_a0/ %G en %F BASM_2019_2_a0