TY - JOUR AU - K. A. Bzheumikhov AU - Z. Ch. Margushev AU - Yu. V. Savoiskii TI - Fiber with negative curvature of the hollow core of polymeric material: production and research of optical properties JO - News of the Kabardin-Balkar scientific center of RAS PY - 2015 SP - 7 EP - 12 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IZKAB_2015_5_a0/ LA - ru ID - IZKAB_2015_5_a0 ER -