@article{ADM_2014_18_1_a12,
     author = {B. V. Zabavsky and B. M. Kuznitska},
     title = {Effective ring},
     journal = {Algebra and discrete mathematics},
     pages = {149--156},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2014_18_1_a12/}
}