J. Hidders, J. Paredaens, and R. Vercammen. Proc. of the Fourth International XML Database Symposium (XSym 2006), 4156, page 92--106. Seoul, Korea, (2006)
J. Hidders, S. Marrara, J. Paredaens, and R. Vercammen. Proceedings of the Tenth International Symposium on Database Programming Languages (DBPL 2005), 3774, page 154--168. Trondheim, Norway, (2005)
M. Fernández, J. Hidders, P. Michiels, J. Siméon, and R. Vercammen. Database and Expert Systems Applications, 16th International Conference, DEXA 2005, Copenhagen, Denmark, August 22-26, 2005, Proceedings, 3588, page 554--563. Copenhagen, Denmark, (2005)
P. Michiels. Proc. of the VLDB 2003 PhD Workshop. Co-located with the 29th International Conference on Very Large Data Bases (VLDB 2003), 76, Berlin, Germany, (September 2003)