1. Bolle, F. Patentanmeldung No. A 61 B 3/06 Az P 33 14 171.1 — 35; 19. 04. 83: Elektronisches Gerät zur Untersuchung des menschlichen Farbensinns. Deutsches Patentamt, München (1983).
2. Bolle, F. and Krastel, H. A new pocket anomaloscope. In: Verriest, G. (ed.), Colour Vision Deficiencies VII Doc. Ophthalmol. Proc. Ser. 39: 289–293, Dr. W. Junk, Den Haag (1984).
3. Bolle, F., Krastel, H. and Reysek, R. Erste Erfahrungen mit dem Taschenanomaloskop. Fortschr. Ophtalmol. 81: 658–660 (1984).
4. Dain, S.J., Strange, G. and Boyd, R.A. A solid state anomaloscope. In: Verriest, G. (ed.), Colour Vision Deficiencies V. pp. 181–183. Adam Hilger Ltd., Bristol (1980).
5. Drum, B., Sternheim, C. and Severns, M. Anomaloscope plate test field trial: Comparisons with four other tests of congenital red-green colour vision deficiencies. In: Drum, B., Moreland, J.D. and Serra, A. (eds.), Colour Vision Deficiencies X. Doc. Ophthalmol. Proc. Ser. 54: 77–84, Kluwer, Dordrecht (this volume).