@article{32405,
author = {Steffen Börm and Stefan A. Sauter},
title = {{BEM with linear complexity for the classical boundary integral operators}},
doi = {10.1090/S0025-5718-04-01733-8},
journal = {Mathematics of computation},
pages = {1139--1177},
year = {2005},
volume = {74},
number = {251},
issn = {0025-5718},
}