O. Baykal
- Digital Elevation Model Based Volume Calculations Using Topographical Data. Dans: Journal of Surveying Engineering (ASCE), v. 129, n. 2 (mai 2003). (2003):
- Functional Models and New Stochastic Model in Combined Leveling Nets. Dans: Journal of Surveying Engineering (ASCE), v. 128, n. 4 (novembre 2002). (2002):
- Transformation of Ellipsoid Heights to Local Leveling Heights. Dans: Journal of Surveying Engineering (ASCE), v. 127, n. 3 (août 2001). (2001):