Willi Freeden. Metaharmonic splines for solving the exterior Dirichlet Problem for the Helmholtz equation. In Charles K. Chui, Larry L. Schumaker, Florence I. Utreras, editors, Topics in Multivariate Approximation. pages 99-110, Academic Press, 1987. [doi]
@incollection{Freeden87,
title = {Metaharmonic splines for solving the exterior Dirichlet Problem for the Helmholtz equation},
author = {Willi Freeden},
year = {1987},
doi = {10.1016/b978-0-12-174585-1.50012-9},
url = {https://doi.org/10.1016/b978-0-12-174585-1.50012-9},
researchr = {https://researchr.org/publication/Freeden87},
cites = {0},
citedby = {0},
pages = {99-110},
booktitle = {Topics in Multivariate Approximation},
editor = {Charles K. Chui and Larry L. Schumaker and Florence I. Utreras},
publisher = {Academic Press},
isbn = {978-0-12-174585-1},
}