@article{DAN_1989_305_2_a5,
     author = {A. A. Sapozhenko},
     title = {Asymptotics of the number of monotone functions on partially},
     journal = {Doklady Akademii Nauk},
     pages = {279--283},
     publisher = {mathdoc},
     volume = {305},
     number = {2},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_305_2_a5/}
}