"Do as I Say! . But Who Says What I Should Say - or Do?" On the Definition of a Standard Spoken Command Vocabulary for ICT Devices and Services. - Bruno von Niman; Catriona Chaplin; Jose-Antonio Collado-Vega; Lutz Groh; Scott McGlashan; Wally Mellors; David A. van Leeuwen (Mobile HCI, 2002)