@article{UZKU_2011_153_4_a18,
     author = {T. A. Gavrilova and O. L. Malinovskaya},
     title = {Multilevel knowledge structuring and flexible conceptual atlases design},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {189--202},
     publisher = {mathdoc},
     volume = {153},
     number = {4},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2011_153_4_a18/}
}