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@article{DAN_1967_175_6_a5, author = {L. L. Maksimova}, title = {Some questions on the {Ackermann} calculus}, journal = {Doklady Akademii Nauk}, pages = {1222--1224}, publisher = {mathdoc}, volume = {175}, number = {6}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_175_6_a5/} }
L. L. Maksimova. Some questions on the Ackermann calculus. Doklady Akademii Nauk, Tome 175 (1967) no. 6, pp. 1222-1224. http://geodesic.mathdoc.fr/item/DAN_1967_175_6_a5/