@article{BASM_2013_1_a2,
     author = {M. N. Popa and V. V. Pricop},
     title = {Applications of algebraic methods in solving the center-focus problem},
     journal = {Buletinul Academiei de \c{S}tiin\c{t}e a Republicii Moldova. Matematica},
     pages = {45--71},
     publisher = {mathdoc},
     number = {1},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BASM_2013_1_a2/}
}