Kitaoka, Y., Tou, H., Zheng, G.-q., Ishida, K., Asayama, K., Kobayashi, T. C., Kohda, A., Takeshita, N., Amaya, K., Onuki,
Y., Geibel, G., Schank, C., & Steglich, F. (1995). NMR study of strongly correlated
electron systems. Physica B-Condensed Matter, 206-207(1-4),
55-61. doi:10.1016/0921-4526(94)00365-3.