@article{DAN_1957_115_2_a12,
     author = {B. I. Finikov},
     title = {On a family of classes of functions in the logic algebra and their realization in the class of $\Pi$-schemes},
     journal = {Doklady Akademii Nauk},
     pages = {247--248},
     publisher = {mathdoc},
     volume = {115},
     number = {2},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_115_2_a12/}
}