@article{ZNSL_1971_20_a13,
     author = {V. P. Orevkov},
     title = {The equivalence of the two definitions of recursive continuity},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {145--159},
     year = {1971},
     volume = {20},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1971_20_a13/}
}