%0 Journal Article %A L. A. Haroutunyan %T Phase-contrast imaging based on three-block Fresnel zone plate interferometers using hard $\mathrm{X}$-ray laboratory sources %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2017 %P 101-104 %V 51 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2017_51_1_a18/ %G en %F UZERU_2017_51_1_a18