@article{IVM_1992_1_a4,
     author = {V. K. Bulitko},
     title = {Sub-Turing reducibilities of bounded complexity},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {27--37},
     publisher = {mathdoc},
     number = {1},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1992_1_a4/}
}