1. Albrecht T, Lüddecke K, Zimmermann J (2013) A precise and reliable train positioning system and its use for automation of train operation. In: IEEE International Conference on Intelligent Rail Transportation, Beijing
2. Dai Z, Ziebold R, Engler E (2011) The on-board maritime PNT Module: a focus on integrity monitoring and preliminary results. In: European Navigation Conference GNSS.
3. Dai Z, Ziebold R, Born A, Engler E (2012) Heading-determination using the sensor-fusion based maritime PNT Unit. In: IEEE/ION PLANS
4. Gewies S, Becker C, Noack T (2012) Deterministic framework for parallel real-time processing in GNSS applications. In: 6th ESA Workshop on Satellite Navigation Technologies, pp 1–7. IEEE Xplore, Piscataway
5. Groves PD (2007) GNSS technology and applications series. In: Principles of GNSS, inertial and multi-sensor integrated navigation systems. Artech House, Boston