%0 Journal Article %A Gheorghe Tigan %T On a~family of Hamiltonian cubic planar differential systems %J Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica %D 2006 %P 75-86 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/BASM_2006_2_a8/ %G en %F BASM_2006_2_a8