@article{IZKAB_2011_1_a30,
     author = {A. A. Letichevskii},
     title = {Insertion machines},
     journal = {News of the Kabardin-Balkar scientific center of RAS},
     pages = {169--180},
     publisher = {mathdoc},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IZKAB_2011_1_a30/}
}