%0 Journal Article %A A. I. Korol'kov %A A. V. Shanin %T Diffraction by grating consisting of screens with different height: new equations %J Zapiski Nauchnykh Seminarov POMI %D 2014 %P 62-89 %V 422 %U http://geodesic.mathdoc.fr/item/ZNSL_2014_422_a4/ %G ru %F ZNSL_2014_422_a4