1. «The Evolution of Terrestrial Conventional Geodetic Instrumentation and the Need to Revise Their Certification Standards»
2nd Panhellenic Conference of Rural and Surveying Engineers, Athens, December 2006.
2. «A Proposal for the Development of a Modern and Accurate Geoid Map for the Hellenic Region»
2nd Panhellenic Conference of Rural and Surveying Engineers, Athens, December 2006.
3. «Real Time Data Collection and Management»
3rd Panhellenic Conference of Rural and Surveying Engineers, Athens, December 2010.
4. «The Contribution of the Surveying Engineer to High-Precision Applications: The Case of CERN»
5th Panhellenic Conference of Rural and Surveying Engineers, Athens, October 2017.