Bruno Simões Giuseppe Conti Stefano Piffer Raffaele de Amicis Enterprise-level architecture for interactive web-based 3D visualization of geo-referenced repositories. 147-154 2009 Web3D http://doi.acm.org/10.1145/1559764.1559787 conf/vrml/2009 db/conf/vrml/web3d2009.html#SimoesCPA09