@article{ZNSL_1972_32_a1,
     author = {E. Ya. Dantsin},
     title = {The increase of the complexity of functions at an application of the multiple recursion},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {12--17},
     year = {1972},
     volume = {32},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1972_32_a1/}
}