End-user-oriented telco mashups: the OMELETTE approach. - Olexiy Chudnovskyy; Tobias Nestler; Martin Gaedke; Florian Daniel; José Ignacio Fernández-Villamor; Vadim I. Chepegin; José Angel Fornas; Scott Wilson; Christoph Kögler; Heng Chang (WWW (Companion Volume), 2012)