@article{UZKU_2008_150_4_a1,
     author = {M. S. Ageev and B. V. Dobrov and N. V. Loukachevitch},
     title = {Automatic {Text} {Categorization:} {Methods} and {Problems}},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {25--40},
     publisher = {mathdoc},
     volume = {150},
     number = {4},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2008_150_4_a1/}
}