1. Bhatti , M. S. 1972 The determination of interior orientation elements of non-topographic cameras at short object distances. Ph.D. thesis 134
2. Close-range camera calibration;Brown;Photogrammetric Engineering,1971
3. Vahbildmessung mit Nicht-Messkammern;Dohler;Bildmessung und Luftbildwesen,1971
4. Faig , W. 1971 Calibration of close-range photogrammetric cameras American Society of Photogrammetry/ University of Illinois Symposium on close-range photogrammetry 111 131
5. Variation in distortion with magnification;Magill;Journal of Research of the National Bureau of Standards,1955