TY - THES TI - Access Restrictions to and with Description Logic Web Ontologies AU - Knechtel, Martin CY - PB - PY - 2010 PY - 2010 LA - English UR - http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-63686 UR - https://katalog.ub.uni-leipzig.de/Record/0-643957820 ER -