%0 Journal Article %A Jaume Llibre %T Some families of quadratic systems with at most one limit cycle %J Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica %D 2023 %P 8-15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/BASM_2023_1_a1/ %G en %F BASM_2023_1_a1