Smartphone-based Information and Navigation Aids for Public Transport.
Karl Rehrl, Nicolas Göll, Sven Leitinger, S. Bruntsch, H.-J. Mentz (2007): Smartphone-based Information and Navigation Aids for Public Transport. In: G. Gartner et. al. (Eds.), Location Based Services and TeleCartography, Lecture Notes in Geoinformation and Cartography, Springer Verlag