Linda Bird, Andrew Goodchild, Terry A. Halpin. Object Role Modelling and XML-Schema. In Alberto H. F. Laender, Stephen W. Liddle, Veda C. Storey, editors, Conceptual Modeling - ER 2000, 19th International Conference on Conceptual Modeling, Salt Lake City, Utah, USA, October 9-12, 2000, Proceedings. Volume 1920 of Lecture Notes in Computer Science, pages 309-322, Springer, 2000. [doi]