@Inproceedings{Lorentzos99,
author = {Lorentzos, N. A. and Viqueira, J. R. and Tryfona, N.},
title = {Quantum-Based Spatial Extension to the Relational Model},
booktitle = {Proceedings of the 7th Panhellenic Conference on Informatics (PCI 1999)},
address = {Ioannina},
year = {1999},
}