@article{MZM_1997_62_3_a10,
     author = {R. Sh. Omanadze},
     title = {Complexity properties of recursively enumerable sets and $sQ$-completeness},
     journal = {Matemati\v{c}eskie zametki},
     pages = {425--429},
     publisher = {mathdoc},
     volume = {62},
     number = {3},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1997_62_3_a10/}
}