Behr, Marion; Behr, Omri (1991). "Environmentally safe Etching". Chemtech. 21 (4): 210. ↩
"A pulse/pulse reverse electrolytic approach to electropolishing and through-mask electroetching". Products Finishing. Gardner Publications Inc. Archived from the original on 15 April 2016. Retrieved 6 May 2012. https://web.archive.org/web/20160415220518/https://www.highbeam.com/doc/1G1-270532365.html ↩