%0 Journal Article %A Alexandru Şubă %A Olga Vacaraş %T Quartic differential systems with an invariant straight line of maximal multiplicity %J Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica %D 2018 %P 76-91 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/BASM_2018_1_a6/ %G en %F BASM_2018_1_a6