@article{DAN_1993_332_2_a3,
     author = {S. S. Goncharov},
     title = {Positive computable enumerations},
     journal = {Doklady Akademii Nauk},
     pages = {142--143},
     publisher = {mathdoc},
     volume = {332},
     number = {2},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_332_2_a3/}
}