1. Ben-Hur, E. and Ben-Ishai, R. (1968). Biochim. Biophys. Acta 166, 9–15.
2. Blackburn, G. M. and Davies, R. J. H. (1966). Biochem. Biophys. Res. Commun. 22, 704–706.
3. Blum, H. F., Robinson, J. C. and Loos, G. M. (1951). J. Gen. Physiol. 35, 323–342. Cohn, W. E., Leonard, N. J. and Wang, S. Y. (1974). Photochem. Photobiol. 19, 89–94.
4. Cook, J. S. (1967). Photochem. Photobiol. 6, 97–101.
5. Cook, J. S. (1970). Photophysiology 5, 191–233.