Chen, J., Callis, P. R., & King, J. (2009). Mechanism of the Very Efficient Quenching of Tryptophan Fluorescence in Human γD- and γS-Crystallins: The γ-Crystallin Fold May Have Evolved To Protect Tryptophan Residues from Ultraviolet Photodamage. American Chemical Society.

Chen, Jiejin, Patrik R. Callis, och Jonathan King. Mechanism of the Very Efficient Quenching of Tryptophan Fluorescence in Human γD- and γS-Crystallins: The γ-Crystallin Fold May Have Evolved To Protect Tryptophan Residues From Ultraviolet Photodamage. American Chemical Society, 2009.

Chen, Jiejin, Patrik R. Callis, och Jonathan King. Mechanism of the Very Efficient Quenching of Tryptophan Fluorescence in Human γD- and γS-Crystallins: The γ-Crystallin Fold May Have Evolved To Protect Tryptophan Residues From Ultraviolet Photodamage. American Chemical Society, 2009.