FREQUENCY DISPERSION OF THE PROTON ZEEMAN SPIN-LATTICE RELAXATION IN THE SMECTIC PHASES OF TBBA R. BLINC, M. LUZAR, M. MALI, R. OSREDKAR, J. SELIGER et M. VILFAN J. Phys. Colloques, 37 C3 (1976) C3-73-C3-76 DOI: 10.1051/jphyscol:1976311