@article{DAN_1988_299_3_a6,
     author = {Yu. I. Karlovich},
     title = {A local-trajectory method for the study of invertibility in $C^*$-algebras of operators with discrete groups of shifts},
     journal = {Doklady Akademii Nauk},
     pages = {546--550},
     publisher = {mathdoc},
     volume = {299},
     number = {3},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_299_3_a6/}
}