@article{AL_1976_15_4_a5,
     author = {V. L. Selivanov},
     title = {Two theorems on computable numerations},
     journal = {Algebra i logika},
     pages = {470--484},
     publisher = {mathdoc},
     volume = {15},
     number = {4},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1976_15_4_a5/}
}