%0 Journal Article %A Pavel Exner %A Andrii Khrabustovskyi %T Gap control by singular Schrödinger operators in a periodically structured metamaterial %J Žurnal matematičeskoj fiziki, analiza, geometrii %D 2018 %P 270-285 %V 14 %N 3 %U http://geodesic.mathdoc.fr/item/JMAG_2018_14_3_a1/ %G en %F JMAG_2018_14_3_a1