Kirschfeld, K Former Department Comparative Neurobiology, Max Planck Institute for Biological Cybernetics, Max Planck Society; Max Planck Institute for Biological Cybernetics, Max Planck Society;
https://link.springer.com/content/pdf/10.1007/BF02425371.pdf (Publisher version)
Kirschfeld, K. (1981). Biophysics on photoreceptors. Biophysics of structure and mechanism, 7(4), 232-233. doi:10.1007/BF02425371.