@article{DM_2009_21_1_a3,
     author = {V. B. Larionov},
     title = {On distribution of some classes of monotone $k$-valued functions on the lattice of closed classes},
     journal = {Diskretnaya Matematika},
     pages = {66--77},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2009_21_1_a3/}
}