G. Kerekes, and V. Schwieger. 6th International Conference on Machine Control and Guidance. Berlin, Germany, Bornimer Agrartechnische Berichte Heft 101, page 35-43. (2018)
A. Avram, N. El Gemayel, and V. Schwieger. Proceedings of the 31st International Technical Meeting of the Satellite Division of the Institute of Navigation, Institute of Navigation (ION GNSS) Satellite Division, (2018)