@conference{UBHD-1751958, publisher={Ed. de physique}, address={Paris}, year={1987}, pages={XVI S., S. 799 - 1243}, language={eng}, isbn={2-86883-074-9 and 978-2-86883-074-6}, number={ARRAY(0x55c735eb1fc8)}, series={Journal de physique}, library={UB [Signatur: ZSN 371 C::48, Suppl. 9,2]}, }