1. Al-Rousan, N., Cheng, P., Petrie, G. and Toutin, T. and Zoej, M.L.V. (1997). Automated DEM extraction and orthoimage generation from SPOT Level 1B imagery. Photogrammetry Engineering and Remote Sensing,63(8): 965–974.
2. Ganas, A. and Athanassiou, E. (2000). A comparative study on the production of satellite Orthoimagery for geological remote sensing. Geocarto International,15(2): 51–59.
3. Gopalakrishna, B., Iyer, K.V., Goswamy, A., Alurkar, M., Rana, Y.P., Srivastava, P.K. and Majumdar, K.L. (1998). Approach for generation of DEM and orthoimages from IRS 1C stereo data. International Archives of Photogrammetry and Remote Sensing,22(1): 164–171.
4. Gopalakrishna, B. (2000). Conjugate point identification and image matching methods. Lectures volume of the tutorial on “satellite photogrammetry and surveying” organised by Indian National Cartographic Association- Gujarat Branch and Space Applications Centre (I.S.R.O.) at Ahmedabad from 11–14 December 2000, pp. L-9-1-L-9-17.
5. Muller, F. (1978). Instructions for compilation and assemblage of data for a World Glacier Inventory. Dept. of Geography, Swiss Federal Institute of Technology, Zurich.