@article{TRSPY_1958_51_a1,
     author = {S. V. Yablonskii},
     title = {Functional constructions in a $k$-valued logic},
     journal = {Informatics and Automation},
     pages = {5--142},
     publisher = {mathdoc},
     volume = {51},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1958_51_a1/}
}