author = {Brisaboa, N. R. and Hernandez, H. J. and Paramá, J. R. and Penabad, M. R.},
title = {Containment of Conjuctive Queries with Built-in Predicates with Variables and Constants over Any Ordered Domain},
booktitle = {Proceedings of the 2nd East European Symposium on Advances in Databases and Information Systems (ADBIS 1998) - LNCS 1475},
address = {Poznan},
year = {1998},
pages = {46-57}