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Diehn, B., 1979 , 'Photic responses and sensory transduc-tion in protists', in H. Autrum, ed., 1979, ibid. 

Dodge, J. D., 1991 , 'Photosensory systems in eukaryotic algae', in J. R. Cronly-Dillon and R. L. Gregory, eds, ibid. A comprehensive account of algal eyespots covering a large number of different types 

Foster, K. W. and R. D. Smyth, 1980 , 'Light antennae in phototactic algae', Microbiological Reviews, 44, 572-630 

Harz, H., C. Nonnegasser and P. Hegemann, 1992 , 'The photoreceptor current of the green alga Chlamydomonas', Philosophical Transactions of the Royal Society B, 338, 39-52

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