in Proceedings of the International Conference Days on Diffraction 2015, DD 2015
Pages: 354-359
Conference
International Conference Days on Diffraction, Dd 2015, Date: 25 May 2015 through 29 May 2015, Sponsors: et al.;ITMO University;Russian Foundation for Basic Research;St. Petersburg Department of V.A. Steklov Institute of Mathematics;St. Petersburg State University;The Euler International Mathematical Institute