Quantifying space, understanding minds: A visual summary approach, Mark Simpson, Kai-Florian Richter, Jan Oliver Wallgrün, Alexander Klippel
Journal of Spatial Information Science

This is the tricky part: When directions become difficult, Stephen Hirtle, Kai-Florian Richter, Samvith Srinivas, Robert Firth
Journal of Spatial Information Science

Semantic trajectory compression: Representing urban movement in a nutshell, Kai-Florian Richter, Falko Schmid, Patrick Laube
Journal of Spatial Information Science