@InProceedings{elbassioni_et_al:LIPIcs.STACS.2009.1841,
author = {Elbassioni, Khaled and Krohn, Erik and Matijevic, Domagoj and Mestre, Julian and Severdija, Domagoj},
title = {{Improved Approximations for Guarding 1.5-Dimensional Terrains}},
booktitle = {26th International Symposium on Theoretical Aspects of Computer Science},
pages = {361--372},
series = {Leibniz International Proceedings in Informatics (LIPIcs)},
ISBN = {978-3-939897-09-5},
ISSN = {1868-8969},
year = {2009},
volume = {3},
editor = {Albers, Susanne and Marion, Jean-Yves},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.STACS.2009.1841},
URN = {urn:nbn:de:0030-drops-18410},
doi = {10.4230/LIPIcs.STACS.2009.1841},
annote = {Keywords: Covering problems, Guarding 1.5-terrains, Approximation algorithms, Linear programming, Totally balanced matrices}
}