@article{SM_1978_34_1_a2, author = {L. A. Muravei}, title = {Analytic continuation with respect to a~parameter of the {Green's} functions of exterior boundary value problems for the two-dimensional {Helmholtz} {equation.~III}}, journal = {Sbornik. Mathematics}, pages = {55--98}, year = {1978}, volume = {34}, number = {1}, language = {en}, url = {http://geodesic.mathdoc.fr/item/SM_1978_34_1_a2/} }