@article{MZM_1997_61_4_a10,
     author = {A. V. Khokhlov},
     title = {Stable subsets of modules and the existence of a~unit in associative rings},
     journal = {Matemati\v{c}eskie zametki},
     pages = {596--611},
     publisher = {mathdoc},
     volume = {61},
     number = {4},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1997_61_4_a10/}
}