TY  - JOUR
AU  - L. V. Levonyan
AU  - H. M. Manukyan
TI  - Features of diffraction focusing of a spherical $\mathrm{X}$-ray wave on a short period superlattice
JO  - Proceedings of the Yerevan State University. Physical and mathematical sciences
PY  - 2017
SP  - 113
EP  - 116
VL  - 51
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/UZERU_2017_51_1_a21/
LA  - en
ID  - UZERU_2017_51_1_a21
ER  -