Copyright © 1965 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Issue Physikalische Blätter Volume 21, Issue 9, pages 439–441, September 1965 Total views since publication: 43 Additional Information How to Cite Strubecker, K., Dehnen, H., Hund, F., Kofink, W., Steinbuch, K., Sc...