"CORRELATION BETWEEN MÖSSBAUER PARAMETERS OF IRON (III) SUBSTITUTED BENZOATES AND THEIR HAMMETT σ FUNCTIONS" PH. LE DOCTE, H. POLLAK, W. BRUYNEEL and P. WALTER J. Phys. Colloques, 37 C6 (1976) C6-506 DOI: 10.1051/jphyscol:19766103