@article{DM_2005_17_4_a7,
     author = {D. V. Khovratovich},
     title = {On cardinality of some subclasses of monotone functions},
     journal = {Diskretnaya Matematika},
     pages = {81--97},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2005_17_4_a7/}
}