1. ARECHIGA, H., WIERSMA, C.A.G.: Orcadian rhythm of responsiveness in crayfish visual units. J. Neurobiol. 1, 71 – 85(1969).
2. Verh. Dt. Zool. Ges. Innsbruck;G Fleissner,1968
3. Inaug.-Diss. Nat. Fak. Univ. Ffm.;G Fleissner,1971
4. GLUUD, R.: Pigmentwanderung und Retinomotorik in Komplexaugen von Insekten. Zulassungsarb. H. Lehramt, Univ. München (1964).
5. HOEGLUND, G.: Pigment migration, light screening, and receptor sensitivity in the compound eye of nocturnal lepidoptera. Acta physiol. scand. 69, (Suppl. 282), 5–56 (1966).