@article{DAN_1971_198_5_a6,
     author = {B. Z. Moroz},
     title = {Formal systems arising in analysis of physical theories},
     journal = {Doklady Akademii Nauk},
     pages = {1018--1020},
     year = {1971},
     volume = {198},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_198_5_a6/}
}