GSIS Special Issue: Crowdsourcing for Urban Geoinformatics.
Geo-Spatial Information Science (GSIS), Volume 23, Issue 3. Taylor & Francis.
Hongchao Fan, Rene Westerholt, João Porto de Albuquerque, Bernd Resch and Alexander Zipf
A cross-analysis framework for multi-source volunteered, crowdsourced, and authoritative geographic information: The case study of volunteered personal traces analysis against transport network data