A Situation-aware Mobile Traffic Information System. - Wolf-Tilo Balke; Werner Kießling; Christoph Unbehend (HICSS, 2003)

Personalized Services for Mobile Route Planning. - Wolf-Tilo Balke; Werner Kießling; Christoph Unbehend (ICDE, 2003)

Performance and Quality Evaluation of a Personalized Route Planning System. - Wolf-Tilo Balke; Werner Kießling; Christoph Unbehend (SBBD, 2003)