@article{BASM_2018_1_a6,
     author = {Alexandru \c{S}ub\u{a} and Olga Vacara\c{s}},
     title = {Quartic differential systems with an invariant straight line of maximal multiplicity},
     journal = {Buletinul Academiei de \c{S}tiin\c{t}e a Republicii Moldova. Matematica},
     pages = {76--91},
     publisher = {mathdoc},
     number = {1},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BASM_2018_1_a6/}
}