SYMMETRY SELECTION RULES IN RAMAN HETERODYNE DETECTION OF NUCLEAR RESONANCE P.D. Bloch, W.S. Brocklesby, R.T. Harley et D.R. Taylor J. Phys. Colloques, 46 C7 (1985) C7-523-C7-526 DOI: 10.1051/jphyscol:1985793