Geodesic
The exterior generalized Dirichlet problem for the Helmholtz equation
Differencialʹnye uravneniâ, Tome 10 (1974) no. 4, pp. 747-750 
G. P. Boyko. The exterior generalized Dirichlet problem for the Helmholtz equation. Differencialʹnye uravneniâ, Tome 10 (1974) no. 4, pp. 747-750. http://geodesic.mathdoc.fr/item/DE_1974_10_4_a19/
@article{DE_1974_10_4_a19,
     author = {G. P. Boyko},
     title = {The exterior generalized {Dirichlet} problem for the {Helmholtz} equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {747--750},
     year = {1974},
     volume = {10},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_4_a19/}
}
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UR  - http://geodesic.mathdoc.fr/item/DE_1974_10_4_a19/
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