%0 Journal Article %A I. A. Gurtueva %T Concise review of analytical methods for X-rays reflectivity evaluation with regard to real state of surface %J News of the Kabardin-Balkar scientific center of RAS %D 2014 %P 38-47 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IZKAB_2014_6_a4/ %G ru %F IZKAB_2014_6_a4