SpringerLink (Online service), Kutterer, H., Seitz, F., Alkhatib, H., & Schmidt, M. (2015). The 1st International Workshop on the Quality of Geodetic Observation and Monitoring Systems (QuGOMS'11): Proceedings of the 2011 IAG International Workshop, Munich, Germany April 13-15, 2011 (1st ed. 2015.). Cham: Springer International Publishing : Imprint: Springer.

SpringerLink (Online service), Hansjörg Kutterer, Florian Seitz, Hamza Alkhatib, and Michael Schmidt. The 1st International Workshop On the Quality of Geodetic Observation and Monitoring Systems (QuGOMS'11): Proceedings of the 2011 IAG International Workshop, Munich, Germany April 13-15, 2011. 1st ed. 2015. Cham: Springer International Publishing : Imprint: Springer, 2015.

SpringerLink (Online service), et al. The 1st International Workshop On the Quality of Geodetic Observation and Monitoring Systems (QuGOMS'11): Proceedings of the 2011 IAG International Workshop, Munich, Germany April 13-15, 2011. 1st ed. 2015. Cham: Springer International Publishing : Imprint: Springer, 2015.