TY - JOUR AU - V. M. Babich TI - A class of topographical waveguides JO - Algebra i analiz PY - 2010 SP - 98 EP - 107 VL - 22 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AA_2010_22_1_a4/ LA - ru ID - AA_2010_22_1_a4 ER -