TY - JOUR AU - N. V. Zepelev TI - On some special solutions for Helmholtz equation JO - Zapiski Nauchnykh Seminarov POMI PY - 1975 SP - 197 EP - 202 VL - 51 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1975_51_a14/ LA - ru ID - ZNSL_1975_51_a14 ER -