@article{ZVMMF_1977_17_6_a14, author = {A. A. Kirilenko and V. P. Shestopalov and N. P. Yashina}, title = {A strict solution of the problem of a circular waveguide with a step discontinuity}, journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki}, pages = {1482--1493}, publisher = {mathdoc}, volume = {17}, number = {6}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ZVMMF_1977_17_6_a14/} }