@article {23,
	title = {The Grid4All ontology for the retrieval of traded resources in a market-oriented Grid},
	journal = {International Journal Web and Grid Services, special issue on Web/Grid Information and Services Discovery and Management},
	volume = {4},
	year = {2008},
	month = {00/2008},
	pages = {418-439},
	type = {Ontology Engineering},
	doi = {10.1504/IJWGS.2008.022545},
	author = {G. Vouros and A. Papasalouros and K. Kotis and A. Valarakos and K. Tzonas and et al}
}
