13C-NMR study on κ -(BEDT-TTF)2X A. Kawamoto, Y. Honma, M. Yamashita, J. Sasaki, S.-I. Okitsu and K.-I. Kumagai J. Phys. IV France, 114 (2004) 327-329 DOI: 10.1051/jp4:2004114073
