Weber, Hans-Jörg L., and Michael Bauder. 2013. “New Methods in Mobility Analysis: The Combination of GPS-Tracking With Quantitative and Qualitative Methods in the Context of Tourism”. Raumforschung Und Raumordnung | Spatial Research and Planning 71 (2): 99–113. https://doi.org/10.1007/s13147-013-0218-y.