Federica Paganelli David Parlanti Niccoló Francini Dino Giuli A SOA-Based Mobile Guide to Augment Tourists' Experiences with User-Generated Content and Third-Party Services. 435-442 2009 ICIW http://dx.doi.org/10.1109/ICIW.2009.71 conf/iciw/2009 db/conf/iciw/iciw2009.html#PaganelliPFG09