Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1977_22_1_a6, author = {A. M. Levin}, title = {One conservative extension of formal mathematic analysis with a~scheme of dependent choice}, journal = {Matemati\v{c}eskie zametki}, pages = {61--68}, publisher = {mathdoc}, volume = {22}, number = {1}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1977_22_1_a6/} }
A. M. Levin. One conservative extension of formal mathematic analysis with a~scheme of dependent choice. Matematičeskie zametki, Tome 22 (1977) no. 1, pp. 61-68. http://geodesic.mathdoc.fr/item/MZM_1977_22_1_a6/