=Volume=
{{Volume
|number=21
|storemode=property
|wikidataid=Q113501254
|title=Proceedings of the
|acronym=KRDB'99
|url=http://ceur-ws.org/Vol-21/
|date=1999-07-06
|dblp=conf/krdb/99
|urn=urn:nbn:de:0074-1155-8
}}