Anelastic relaxation and 139La NQR in La2-xSrxCuO4 around the critical Sr content x = 0.02 A. Campana, R. Cantelli, F. Cordero, M. Corti and A. Rigamonti Eur. Phys. J. B, 18 1 (2000) 49-54 Published online: 15 November 2000 DOI: 10.1007/s100510070076