1. Recommended Procedures for Calibrating Photogrammetric Cameras and for Related Optical Tests—International Society of Protogrammetry, Commission I;Carman;Natl. Res. Council Can., Div. Appl. Phys., Ottawa,1964
2. A new method for the determination of the distortion and the inner orientation of cameras and projectors;Hallert;Photogrammetria,1954
3. Photogrammetry;Hallert,1960
4. Test measurements in comparators and tolerances for such instruments;Hallert;Photogrammetric Eng.,1963
5. Tolerances of photogrammetric instruments and methods;Hallert;Trans. Roy. Inst. Technol., Stockholm,1964