%0 Journal Article %A S. A. Nazarov %T Asymptotic analysis of the spectrum of a quantum waveguide with a wide Neumann ``window'' in the light of mechanics of cracks %J Zapiski Nauchnykh Seminarov POMI %D 2022 %P 176-237 %V 516 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2022_516_a7/ %G ru %F ZNSL_2022_516_a7