1. H.O. Anger, “Tomographic gamma-ray scanner with simultaneous readout of several planes,” in Fundamental Problems in Scanning, Eds. A. Gottschalk, R.N. Beck, Springfield, Illinois: Thomas, 1968, pp. 195–211.
2. R.E. Alvarez and A. Macovski, “Energy-selective reconstructions in X-ray computerized tomography,” Phys. Med. Biol., vol. 21, pp. 733–744, 1976.
3. R.E. Alvarez and A. Macovski, “Noise and dose in energy dependence computerized tomography,” Proc. SPIE, vol. 96, pp. 131–137, 1976.
4. H.C. Andrews and B.R. Hunt, Digital Image Restoration, Englewood Cliffs, New Jersey: Prentice Hall, 1977.
5. R.N. Bracewell, “Strip integration in radioastronomy,” Aust. J. Phys., vol. 9, pp. 198–217, 1956.