References
- Shepp. A. et al. Photogr. Sci. Engng. 11, 316 (1967).
- Hedges. J. M.. and Mitchell, i. W., Phil. Slag., 44, 357 (1953).
- Goldberg, G. N. et al. Techn. Oper. Report ADS–TDR–63–598 (1963).
- Shepp. A., Whitney. R. E., and Masters. J., Photogr. Sci. Engng. 11, 322 (1967).
- Newman. A.. British J. Phot., 112, 779(1965).
- Techn. Oper., Belg. patent No. 610306 (1961).
- Techn. Oper., U.S. Patent No. 3.333,981 (1967).
- Nicolae, M., Rom. Patent No. 52405(1970).
- Eneva. J. and Karadjov. G., JSAM, 1, 417 (1973).
- Berg. W. F. and Frei. E. A., Photogr. Sci. Engng, 13, 81 (1969); Frei. E. A., Phot. Korr., 105, 5–15, 21–31. 37–41 (1969).
- Konstantinov. I. and Malinowski. J., J. photogr. Sci., 23, 1, 145 (1975).
- Eneva. J. and Malinowski. J., J. photogr. Sci., 22, 273 (1974)