@TechReport{helmut_et_al:DagSemRep.4,
author = {Helmut, Alt and Emo, Welzl},
title = {{Algorithmic Geometry (Dagstuhl Seminar 9041)}},
pages = {1--19},
ISSN = {1619-0203},
year = {1991},
type = {Dagstuhl Seminar Report},
number = {4},
institution = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/entities/document/10.4230/DagSemRep.4},
URN = {urn:nbn:de:0030-drops-148928},
doi = {10.4230/DagSemRep.4},
}