(2015):  Development of a dedicated nation-wide geodetic monitoring network The Tsunami Early Warning System of the Sultanate of Oman , Regional Conference on "Reducing Tsunami Risk in the Western Indian Ocean" (Muscat, Oman 2015).

(2013):  Ground based GNSS Atmosphere Sounding at GFZ , Besuch von Prof. Ravishankara im Rahmen POF-ATMO Begutachtung GFZ Potsdam, 15 March 2013 (2013).

(2013):  GNSS Analysis Centre for GRUAN: Expertise and Activities at GFZ , 5th GRUAN Implementation and Coordination Meeting (ICM-5) (DeBilt, Netherlands 2013) (DeBilt, The Netherlands 2013).

(2013):  The VLBI group at GFZ.

(2013):  Make it citable: Data in IVS , 21st Meeting of the European VLBI Group for Geodesy and Astrometry (EVGA) (Espoo, Finland 2013).

(2013):  Towards an Inclusion of the needs of the users of ICRF , Joint Meeting of the IAU WG on ICRF-3 and the IAG Sub-Commission 1.4 (Espoo, Finland 2013).

(2013 online first):  Scientific 3D printing : a work in progress report , GIS DAY am GFZ 2013 (Potsdam 2013), 44 p.

(2013):  Radio occultation measurements at GFZ Potsdam: Over one decade of upper tropospheric and lower stratospheric temperature data , SPARC Data Requirements Workshop (Frascati, Italy 2013).

(2013):  GNSS Reflectometry Experiments , Cryosat UserWorkshop & “Runder Tisch Altimetrie” (Dresden 2013).

(2013):  Earth System Science at GFZ for Skolkovo , Moscow State University of Geodesy and Cartography (MIIGaiK), 28 February 2013.

(2013):  Innovative Remote Sensing: GNSS Radio occultation and Reflectometry , Visit Prof. Liebig (ESA) at GFZ, 13 February 2013.

(2012):  Bodengestützte GNSS-Aktivitäten am GFZ: von Geodäsie bis Atmosphärenmonitoring.

(2012):  GNSS in Forschung und Anwendung.

(2012):  Specular GNSS Reflections on flying Platforms.

(2012):  Studies on Specular GNSS Reflections.

(2012):  GPS/Galileo Earth Observation at GFZ: Recent activities and results , FORMOSAT-3/COSMIC Science Summer Camp, Taipei, Taiwan, 23 August 2012.

(2012):  GPS/Galileo Earth Observation at GFZ: Recent activities and results , Besuch Universität Bonn, 9. Mai 2012 (GFZ Potsdam 2012).

(2011):  GPS/Galileo Earth Observation at GFZ: Recent activities and results.

(2011):  Earth Observation with Navigation Satellites at GFZ: Results, Outlook and Vision.

(2011):  GPS/Galileo Earth Observation at GFZ: Recent activities and results.

(2011):  Erdbeobachtung mit Navigationssatelliten am GFZ : Ergebnisse, Ausblick und Vision.

(2011):  Prospects of GPS/Galileo Earth Observation.

(2011):  Atmosphärensondierung mit GPS.

(2010):  GPS-Wasserdampftomografie.

(2010):  GPS-Prozessierung am GFZ : Überblick und Status.