@article{AL_1988_27_2_a0,
     author = {A. N. Gamova},
     title = {Generalized calculations with oracles},
     journal = {Algebra i logika},
     pages = {131--147},
     publisher = {mathdoc},
     volume = {27},
     number = {2},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1988_27_2_a0/}
}