TY - JOUR AU - V. D. Dushkin TI - Approximate solving of the third boundary value problems for Helmholtz equations in the plane with parallel cuts JO - Žurnal matematičeskoj fiziki, analiza, geometrii PY - 2017 SP - 254 EP - 267 VL - 13 IS - 3 UR - http://geodesic.mathdoc.fr/item/JMAG_2017_13_3_a2/ LA - en ID - JMAG_2017_13_3_a2 ER -