Julie Doyle, Michela Bertolotto, David C. Wilson. A Survey of Multimodal Interfaces for Mobile Mapping Applications. In Liqiu Meng, Alexander Zipf, Stephan Winter 0001, editors, Map-based Mobile Services - Design, Interaction and Usability. Lecture Notes in Geoinformation and Cartography, pages 146-167, Springer, 2008. [doi]
Abstract is missing.