@article{BASM_2012_1_a3,
     author = {Dumitru Cozma},
     title = {Center problem for cubic systems with a~bundle of two invariant straight lines and one invariant conic},
     journal = {Buletinul Academiei de \c{S}tiin\c{t}e a Republicii Moldova. Matematica},
     pages = {32--49},
     publisher = {mathdoc},
     number = {1},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BASM_2012_1_a3/}
}