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Communicated by L. Collatz
The work reported here was sponsored by the Mathematics Research Center, United States Army, Madison, Wisconsin, under Contract No. DA-11-022-ORD-2059.
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Greenspan, D., Werner, P. A numerical method for the exterior Dirichlet problem for the reduced wave equation. Arch. Rational Mech. Anal. 23, 288–316 (1966). https://doi.org/10.1007/BF00281165
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DOI: https://doi.org/10.1007/BF00281165