1. 1. S. Kondo: Journal of Printing Science and Technology,41 (2004) 48.
2. 2. Y. Urabe, Japan Printer (Insatsu Zasshi),87 (2004),3.
3. 3. S. Kondo, Engineering Materials (Kogyo-Zairyo),48 (2000) 54.
4. 4. B. M. Monroe, Chemical Review,93 (1993) 435.
5. 5. R. S. Davidson, Journal of Photochemistry and Photobiology A:Chemistry,73 (1993) 81.