TY - JOUR AU - Natalia Gherstega AU - Mihail Popa TI - Lie algebras of the operators and three-dimensional polynomial differential systems JO - Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica PY - 2005 SP - 51 EP - 64 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/BASM_2005_2_a2/ LA - en ID - BASM_2005_2_a2 ER -