@article{VMUMM_1989_5_a22,
     author = {N. A. Pankrat'ev},
     title = {Predicate calculus and arithmetic with {Grzegorczyk} logic},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {83--85},
     publisher = {mathdoc},
     number = {5},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1989_5_a22/}
}