1. Professor, Civil Engineering Dept., Istanbul Kultur Univ., Atakoy/Istanbul, Turkey.
2. Assistant Professor, Geodesy and Photogrammetric Engineering Dept., R&D Project 27-01-01-06, Yildiz Technical Univ., Istanbul, Turkey.
3. Geodesy and Photogrammetry Dept., General Directorate of Land Registry and Cadastre, Ankara, Turkey.
4. Lieutenant, Geodesy Dept., General Command of Mapping, Ankara, Turkey.