Management of Meta Knowledge for RDF Repositories. - Bernhard Schueler; Sergej Sizov; Steffen Staab (ICSC, 2007)

Querying for meta knowledge. - Bernhard Schueler; Sergej Sizov; Steffen Staab; Duc Thanh Tran (WWW, 2008)

Querying for provenance, trust, uncertainty and other meta knowledge in RDF. - Renata Queiroz Dividino; Sergej Sizov; Steffen Staab; Bernhard Schueler (J. Web Semant., 2009)