@article{AL_1963_2_1_a1,
     author = {N. V. Beljakin},
     title = {The calculation of effective operators on {Turing} machines with},
     journal = {Algebra i logika},
     pages = {19--23},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1963_2_1_a1/}
}