Dimosthenis Georgiadis Panagiotis Germanakos Panayiotis Andreou George Samaras Evaluation Metrics for eHealth Services and Applications within Smart Houses Context. 245-248 2009 ICOST http://dx.doi.org/10.1007/978-3-642-02868-7_33 conf/icost/2009 db/conf/icost/icost2009.html#GeorgiadisGAS09