Heuristic containment check of partial tree-pattern queries in the presence of index graphs. - Dimitri Theodoratos; Stefanos Souldatos; Theodore Dalamagas 001; Pawel Placek; Timos K. Sellis (CIKM, 2006)

Containment of Partially Specified Tree-Pattern Queries. - Dimitri Theodoratos; Theodore Dalamagas 001; Pawel Placek; Stefanos Souldatos; Timos K. Sellis (SSDBM, 2006)

A heuristic approach for checking containment of generalized tree-pattern queries. - Pawel Placek; Dimitri Theodoratos; Stefanos Souldatos; Theodore Dalamagas 001; Timos K. Sellis (CIKM, 2008)

Containment of partially specified tree-pattern queries in the presence of dimension graphs. - Dimitri Theodoratos; Pawel Placek; Theodore Dalamagas 001; Stefanos Souldatos; Timos K. Sellis (VLDB J., 2009)