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@article{DAN_1973_212_2_a6, author = {N. N. Nepeivoda}, title = {A certain generalization of the {Kleene--Mostowski} hierarchy}, journal = {Doklady Akademii Nauk}, pages = {295--297}, publisher = {mathdoc}, volume = {212}, number = {2}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_212_2_a6/} }
N. N. Nepeivoda. A certain generalization of the Kleene--Mostowski hierarchy. Doklady Akademii Nauk, Tome 212 (1973) no. 2, pp. 295-297. http://geodesic.mathdoc.fr/item/DAN_1973_212_2_a6/