References
- Yule J. A.C., and Clapper. F. R. Proc. 10th Ann. Tech. Meeting of TAGA (Technical Association of the Graphic Arts), Los Angeles. California, June 23–26. pp. 163–173 (1958).
- Clapper. F. R. Proc. 14th Ann. Tech. Meeting of TAGA, Minne-apolis. Minn., June 11–13, 107–118 (1962).
- Archer. H. B. Proc. 6th, Ann. Tech. Meeting of TAGA, Milwaukee, Wisconsin. May 10–11, pp. 180–193 (1954).
- Clapper, F. R. Proc. 11th Ann. Tech. Meeting of TAGA, Rochester, New York. June 15–17, pp .177–189 (1959).
- Eastman Kodak Pamphlet No. Q-110, “Density Measurement of Halftones” (1962).