SPAM: A SPARQL Analysis and Manipulation Tool. - Andrés Letelier; Jorge Pérez 001; Reinhard Pichler; Sebastian Skritek (Proc. VLDB Endow., 2012)

Static analysis and optimization of semantic web queries. - Andrés Letelier; Jorge Pérez 001; Reinhard Pichler; Sebastian Skritek (ACM Trans. Database Syst., 2013)