R. Laufer, and V. Schwieger. The 1st International Workshop on the Quality of Geodetic Observation and Monitoring Systems (QuGOMS'11), 140, page 3-8. Cham, Springer, (2015)
O. Lerke, and V. Schwieger. MCG 2016 : 5th International Conference on Machine Control & Guidance, page 1-8. Antony, Institut national de recherche en sciences et technologies pour l’environnement et l’agriculture, (2016)