1. A. H. Alwattar, M. D. Lumb, J. B. Birks, and J. B. Birks (1973 ) InOrganic Molecular Photophysics (), Vol. 1 , pp.403 -454 . John Wiley, London.
2. G. S. Beddard (1973 ) Thesis , University of London.
3. Fluorescence lifetimes in the photosynthetic unit
4. J. B. Birks, and J. B. Birks (1970 ) InPhotophysics of Aromatic Molecules ().