@article{DAN_1993_332_1_a7,
     author = {N. M. Nagornyi},
     title = {A constructive model of classical formal arithmetic},
     journal = {Doklady Akademii Nauk},
     pages = {26--28},
     publisher = {mathdoc},
     volume = {332},
     number = {1},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_332_1_a7/}
}