TY - JOUR AU - G. V. Chernyshev TI - Theoretical and methodological basis JO - News of the Kabardin-Balkar scientific center of RAS PY - 2013 SP - 22 EP - 29 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IZKAB_2013_5_a3/ LA - ru ID - IZKAB_2013_5_a3 ER -