@techreport{instance1256,
	 title = {{OptARQ: A SPARQL Optimization Approach based on Triple Pattern Selectivity Estimation}},
	 author = {Abraham Bernstein and Christoph Kiefer and Markus Stocker},
	 year = {2007},
	 number = {ifi-2007.03},
	 institution = {Department of Informatics, University of Zurich},
	 Date-Added = {2026-08-02 22:38:35},
	 Date-Modified = {2026-08-02 22:38:35}
}