1. On the mechanisms of dark adaptation in day- and night-insects;Bernhard;Adaphysiol. mmd.,1959
2. Comparative studies on dark adaptation in the compound eyes 1 nocturnal and diurnal Lepidoptera;Bernhard;J. nen. Physiol.,1960
3. Studies on the relation between the pigment migration and the sensitivity changes during dark adaptation in diurnal and nocturnal Lepidoptera;Bernhard;J. pen. Physiol.,1960
4. Further studies on pigment migration and sensitivity changes in the compound eye of nocturnal insects;Bernhard;Acta physiol. scad.,1961