@article{43731,
author = {Bjorn Fredrik Nielsen and Aslak Tveito and Wolfgang Hackbusch},
title = {{Preconditioning by inverting the Laplacian\,:\,an analysis of the eigenvalues}},
doi = {10.1093/imanum/drm018},
journal = {IMA journal of numerical analysis},
pages = {24--42},
year = {2009},
volume = {29},
number = {1},
issn = {0272-4979},
}