1. Bellemans T, Kochan B, Janssens D, Wets G, Timmermans H (2008) In the field evaluation of the impact of a GPS-enabled personal digital assistant on activity-travel diary data quality. In: Proceedings of the 87th Annual Meeting of the Transportation Research Board, Washington D.C.
2. Chen Q, Fan Y (2012) Smartphone-Based Travel Experience Sampling and Behavior Intervention. TRB Annual Meeting, January 2012
3. Cottrill C D, Pereira F C, Zhao F, Dias I F, Lim H B, Ben-Akiva M E, Zegras P C (2013) The future Mobility Survey: Experiences in developing a smartphone-based travel survey in Singapore, Singapore, TRB Annual Meeting, January 2013
4. Ericsson Labs (o. J.) Mobile location,
http://labs.ericsson.com/apis/mobile-location
, Zugriff August 2012
5. infas, DIW (2004) Mobilität in Deutschland 2002 – Basisdatensatz; im Auftrag des Bundesministeriums für Verkehr, Bau- und Wohnungswesen (FE-Nr. 70.0736/2003); Bonn und Berlin 2004 <
www.mobilitaet-in-deutschland.de
>; Datenbezug:
http://www.clearingstelle-verkehr.de