@article{VUU_2017_27_3_a13,
     author = {S. D. Sulova},
     title = {Creating groups for marketing purposes from website usage data},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {470--478},
     publisher = {mathdoc},
     volume = {27},
     number = {3},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VUU_2017_27_3_a13/}
}