Claudio Sacerdoti Coen, Paolo Marinelli, Fabio Vitali. Schemapath, a minimal extension to xml schema for conditional constraints. In Stuart I. Feldman, Mike Uretsky, Marc Najork, Craig E. Wills, editors, Proceedings of the 13th international conference on World Wide Web, WWW 2004, New York, NY, USA, May 17-20, 2004. pages 164-174, ACM, 2004. [doi]
Abstract is missing.