1. An infrared pupillometer based on the television scanning technique;Admiraal;IPO Ann. Progr. Rep.,1966
2. The behaviour of the pupil during dark-adaptation;Alpern;J. Physiol., Lond.,1963
3. On pupillary Hippus;Baghuis;IPO Ann. Progr. Rep.,1968
4. Die Periodik der spontanen Pupillenunruhe;Bauermeister;Arch. Psych.,1967
5. Receptive systems, mediating certain light reactions of the pupil of the human eye;Bouma;Phil. Res. Rep.,1965