@conference{drosatos2015pythia,
author = "Drosatos, Georgios and Efraimidis, Pavlos and Avi Arampatzis and Giorgos Stamatelatos and Ioannis N Athanasiadis",
booktitle = "2015 IEEE 39th Annual Computer Software and Applications Conference",
organization = "IEEE",
pages = "822--827",
title = "{P}ythia: {A} privacy-enhanced personalized contextual suggestion system for tourism ",
volume = "2",
year = "2015",
}