@article{DAN_1958_123_1_a4,
     author = {N. A. Karpova},
     title = {Contact schemes for monotonic functions},
     journal = {Doklady Akademii Nauk},
     pages = {25--27},
     publisher = {mathdoc},
     volume = {123},
     number = {1},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_123_1_a4/}
}