1. Ahmed, F. R., and Trotter, J. (1962). Personal communication
2. On the bond lengths of 1:14-benzbisanthrene
3. 300. Overcrowding distortions in aromatic molecules and crystals
4. Almenningen, A., and Bastiansen, O. (1958). K. Norske Vidensk. SelsJc. Skr. No. 4
5. Almenningen, A., Bastiansen, O., and Fernholt, L. (1958). K. Norske Vidensk. Selsk. Skr. No. 3