@article{IIGUM_2011_4_1_a5,
     author = {A. A. Malykh and A. V. Mantsivoda},
     title = {Object {Oriented} {Description} {Logic}},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {57--72},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2011_4_1_a5/}
}