@TechReport{freytag_et_al:DagSemRep.15,
author = {Freytag, Johann Christoph and Maier, David and Vossen, Gottfried},
title = {{Query Processing in Object-Oriented, Complex Object, and Nested Relation Databases (Dagstuhl Seminar 9125)}},
pages = {1--32},
ISSN = {1619-0203},
year = {1991},
type = {Dagstuhl Seminar Report},
number = {15},
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.15},
URN = {urn:nbn:de:0030-drops-149038},
doi = {10.4230/DagSemRep.15},
}