References
- Evans, R. M, “Maintenance of a developer by continuous replenishment”, J.S.M,P.T,E., 31 (September 1938),
- Baumbach, H. L. “Continuous replenishment and chemical control or motion picture developing solutions”, J.S.M.P.T.E., 39 (July 1942).
- Goldwasser. “Mathematical replenishment techniques”, J.S.M.P.T.E, 62 (January 1954).