1. Google street views, cool or creepy? (2007) In: New York Post, 2007, New York, NY, USA
2. Arnott R, Small K (1994) The economics of traffic congestion. In: American Scientist, pp 446–455
3. Ashbrook D, Starner T (2003) Using GPS to learn significant locations and predict movement across multiple users. Pers Ubiquit Comput 7(5):275–286
4. Barkhuus L (2004) Privacy in location-based services, concern vs. coolness. In: Workshop on location system privacy and control, Mobile HCI, Glasgow, UK
5. Barkuus L, Dey A (2003) Location-based services for mobile telephony: a study of users’ privacy concerns. In: 9th IFIP TC13 international conference on human-computer interaction, Interact 2003, Zurich, Switzerland, pp 709–712