@article{DAN_1963_150_4_a9,
     author = {V. K. Korobkov},
     title = {An estimate of the number of monotone functions of an algebra of logic and the complexity of the algorithm 
},
     journal = {Doklady Akademii Nauk},
     pages = {744--747},
     publisher = {mathdoc},
     volume = {150},
     number = {4},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_150_4_a9/}
}