@article{TM_1958_52_a1,
     author = {N. M. Nagornyi},
     title = {Some generalizations of the concept of a normal algorithm},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {7--65},
     year = {1958},
     volume = {52},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1958_52_a1/}
}