DETERMINATION BY POLARIZED NEUTRON DIFFRACTION OF THE SPIN DENSITY DISTRIBUTION IN A NON-CENTROSYMMETRICAL CRYSTAL OF DPPH : C6H6 J. X. Boucherle, B. Gillon, J. Maruani et J. SchweizerJ. Phys. Colloques, 43 C7 (1982) C7-227-C7-234DOI: https://doi.org/10.1051/jphyscol:1982731