1. Halbleitereigenschaften des organischen Molekülkristalls Anthracen, Habilitationsschrift;Karl,1975
2. Organic Molecular Crystals: Anthracene;Kepler,1976
3. The trapping of photocarriers in anthracene by anthraquinone, anthrone and naphthacene
4. The Trapping of Photo-Carriers in Anthracene Crystals by Tetracene