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@article{IZKAB_2015_6-2_a28, author = {A. A. Temirov}, title = {Concept of two-level}, journal = {News of the Kabardin-Balkar scientific center of RAS}, pages = {183--191}, publisher = {mathdoc}, number = {6-2}, year = {2015}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IZKAB_2015_6-2_a28/} }
A. A. Temirov. Concept of two-level. News of the Kabardin-Balkar scientific center of RAS, no. 6-2 (2015), pp. 183-191. http://geodesic.mathdoc.fr/item/IZKAB_2015_6-2_a28/