@Inproceedings{RodríguezLuaces08,
author = {Luaces, M. R. and Places, A. S. and Rodríguez, F. J. and Seco, D.},
title = {Retrieving Documents with Geographic References Using a Spatial Index Structure based on Ontologies},
booktitle = {Advances in Conceptual Modeling. Proceedings of the ER 2008 Workshops - LNCS 5232},
address = {Barcelona},
year = {2008},
pages = {395-404}
}