MÖSSBAUER SPECTROSCOPIC STUDIES OF Ni CATALYSTS : PARTICLE SIZE DETERMINATION AND EFFECT OF HYDROGEN CHEMISORPTION S. Mørup, B. S. Clausen et H. TopsøeJ. Phys. Colloques, 40 C2 (1979) C2-78-C2-80DOI: https://doi.org/10.1051/jphyscol:1979227
