"About Platinum Printing" View Camera Magazine, July/August 1999 Cover Photo - "Polymer Science Building"

"Calibrating Photoshop Curves for Digital Negatives using a UV Densitometer" Alternative Photography International Symposium (APIS) Santa Fe, New Mexico, July 2005 "Pyro and Platinum Printing" Appendix D, Platinum & Palladium Printing, Dick Arentz, 2005, 2nd Edition, ISBN 0-240-80606-9, Focal Press "A Densitometer for Pyro Negatives" View Camera Magazine, March/April 2003 "Azo and Amidol, A Sensitometric Comparison to the Platinum/Palladium Process" January 2003 "Enlarged Negatives Using APHS Film and Pyro" View Camera Magazine, May/June 2002 "The Effects of Pyro Stain in Platinum Printing" View Camera Magazine, July/August 1999 "The Advantages of Pyro for Platinum Printing" View Camera Magazine, September/October 1997 Bob Herbst's Pyro Formula