Voir la notice de l'article provenant de la source Math-Net.Ru
@article{TRSPY_1958_52_a2, author = {N. M. Nagornyi}, title = {A minimal alphabet of algorithms over a given alphabet}, journal = {Informatics and Automation}, pages = {66--74}, publisher = {mathdoc}, volume = {52}, year = {1958}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1958_52_a2/} }
N. M. Nagornyi. A minimal alphabet of algorithms over a given alphabet. Informatics and Automation, Problems of the constructive direction in mathematics. Part 1, Tome 52 (1958), pp. 66-74. http://geodesic.mathdoc.fr/item/TRSPY_1958_52_a2/