Antonio de la Oliva Telemaco Melia Albert Vidal Carlos Jesus Bernardos Ignacio Soto Albert Banchs IEEE 802.21 enabled mobile terminals for optimized WLAN/3G handovers: a case study. 29-40 2007 11 Mobile Computing and Communications Review 2 http://doi.acm.org/10.1145/1282221.1282224 db/journals/sigmobile/sigmobile11.html#OlivaMVBSB07