1. Color changeable dyes for indicating exposure, methods of making and using such dyes and apparatuses incorporating such dyes;Heacock;U.S. Patent,2014
2. Color changeable dyes for indicating exposure, methods of making and using such dyes and apparatuses incorporating such dyes;Heacock;U.S. Patent,2016
3. Reductive Photocatalyists and Smart Inks;Mills;Chem. Soc. Rev.,2015
4. Novel UV-Activated Colorimetric Oxygen Indicator;Lee;Chem. Mater.,2005
5. UV-Activated Luminesence/Colourmetric O2 Indicator;Mills;Int. J. Photoenergy,2008