1. The Principles and Practice of Photochemical Machining and Photoetching;Allen,1986
2. Allen D.M., Gillbanks P. J. and Palmer A. J., 1989, The selection of an appropriate method to manufacture thin sheet metal parts based on technical and financial considerations, Proc. 9th Int. Symp. for Electro-Machining, 246-9.
3. Quantitative examination of photofabricated profiles, Part 5: Effect of stencil integrity on etch factor and the deep etching of stainless steel;Allen;J. Phot. Sci.,1980
4. Report of the quality assurance survey;Cane;PCMI Journal,1988
5. Van Arnam D., 1993, Laser direct imaging systems, PCMI Journal (in the press).