@article{RM_2005_60_5_a5,
     author = {P. A. Krutitskii and V. V. Kolybasova},
     title = {On the mixed problem for the {Helmholtz} equation in a~planar domain with cuts},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {973--974},
     publisher = {mathdoc},
     volume = {60},
     number = {5},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2005_60_5_a5/}
}