@article{JCEM_2019_6_1_a1,
     author = {N. S. Kolotova and A. A. Kuznetsov},
     title = {Statistical study of the paid services market situation to improve the activity of an enterprise},
     journal = {Journal of computational and engineering mathematics},
     pages = {27--34},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JCEM_2019_6_1_a1/}
}