@article{AL_1997_36_6_a1,
     author = {S. S. Goncharov and A. Sorbi},
     title = {Generalized computable numerations and nontrivial {Rogers
}},
     journal = {Algebra i logika},
     pages = {621--641},
     publisher = {mathdoc},
     volume = {36},
     number = {6},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1997_36_6_a1/}
}