Joint Parameter Estimation and Tracking in a Multi-Stage Kalman Filter for Vehicle Positioning
M. Bevermeier, S. Peschke, R. Haeb-Umbach, in: IEEE 69th Vehicular Technology Conference (VTC 2009 Spring), 2009, pp. 1–5.

A GPS positioning approach exploiting GSM velocity estimates
S. Peschke, M. Bevermeier, R. Haeb-Umbach, in: 6th Workshop on Positioning Navigation and Communication (WPNC 2009), 2009, pp. 195–202.