homepages/96/8654,
João R. M. Palotti and João Rafael De Moura Palotti, Home Page, http://ifs.tuwien.ac.at/~palotti/, Technical University of Vienna, Institute of Software Technology and Interactive Systems
homepages/96/5526,
Bertram C. Bruce and Bertram (Chip) Bruce, Home Page, http://people.lis.illinois.edu/~chip/pubs/index.shtml, University of Illinois at Urbana-Champaign, Library and Information Science
homepages/96/1106,
Babajide Afolabi and Babajide Samuel Afolabi, Home Page, http://ng.linkedin.com/pub/babajide-afolabi/9/735/9a2, Obafemi Awolowo University, Ile-Ife, Nigeria
www/org/w3/TR/xmlquery-req,
Donald D. Chamberlin and Peter Fankhauser and Massimo Marchiori and Jonathan Robie, XML Query Requirements, 2001, http://www.w3.org/TR/xmlquery-req