1. Abrams, M. I.: 1980, ?Lithologic Mapping?, in Siegal, B. S. and Gillespie, A. R. (eds):Remote Sensing in Geology, Wiley, New York, p. 702.
2. Baker, M. C. W.: 1982, ?The Nature and Distribution of Upper Cenozoic Ignimbrite Centres in the Central Andes?,J. Volcanol. Geotherm. Res. 11, 293?315.
3. Batson, R. M., Edwards, K., and Eliason, E. M.: 1976, ?Synthetic Stereo and Landsat Pictures?,Photog. Eng. R.S. 42 (10), 1279?1284.
4. Briggs, I.: 1981, ?Integration of Elevation Data with Remotely Sensed Data?, in Laut, P. (ed),Landsat 81. Proceedings of the Second Australian Remote Sensing Conference, Canberra 1981, 4.1.1?4.1.4.
5. Gillespie, A. R.: 1980, ?Digital Techniques of Image Enhancement?, in Siegal, B. S. and Gillespie, A. R. (eds.)Remote Sensing in Geology, Wiley, New York, p. 702.