%0 Journal Article %A V. D. Dushkin %T Approximate solving of the third boundary value problems for Helmholtz equations in the plane with parallel cuts %J Žurnal matematičeskoj fiziki, analiza, geometrii %D 2017 %P 254-267 %V 13 %N 3 %U http://geodesic.mathdoc.fr/item/JMAG_2017_13_3_a2/ %G en %F JMAG_2017_13_3_a2