1. Bolton JR, Hall DO (1979) Ann Rev Energy 42: 353
2. Harriman A, West MA (1982) Photoproduction of hydrogen. Academic, London
3. Grätzel M (ed) (1983) Energy resources through photochemistry and catalysis. Academic, New York
4. Veziroglu TN, Takahashi PK (eds) (1990) Hydrogen Energy Progress VIII. Proceedings of the 8th World Hydrogen Energy Conference. Honolulu and Waikoloa, Hawaii, USA. 22–27 July 1990. (in Three Volumes) Pergamon, New York, p. 1594
5. Hall DO, Rao KK (1989) Chimicaoggi 7: 40