MÖSSBAUER EXPERIMENTS WITH HIGH ENERGY GAMMA RAYS : THE 158 keV TRANSITION IN 199Hg W. KOCH, F. E. WAGNER, D. FLACH et G. M. KALVIUSJ. Phys. Colloques, 37 C6 (1976) C6-693-C6-695DOI: https://doi.org/10.1051/jphyscol:19766144