@inbook{e95986c689ce4d5e9724f0cac59a1564,
title = "Shifted-Laplacian preconditioners for heterogeneous Helmholtz problems",
keywords = "edited books, Geen BTA classificatie",
author = "CW Oosterlee and C Vuik and WA Mulder and RE Plessix",
note = "zie virtueel boek. uitleg affiliatie Mulder CITG. Dit boekdl wordt door CITG opgevoerd.inhoudsopgae en colofon aanwezig",
year = "2009",
language = "Undefined/Unknown",
isbn = "978-3-642-03343-08",
pages = "21--46",
editor = "B Koren and C Vuik",
booktitle = "Advanced Computational Methods in Science and Engineering",
publisher = "Springer",
}