@article{DM_2000_12_3_a6,
     author = {A. A. Bulatov},
     title = {Abstract properties of a class of intervals of lattices of closed classes},
     journal = {Diskretnaya Matematika},
     pages = {95--113},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2000_12_3_a6/}
}