High field optical response of Z. Zhu, V.C. Long, J.L. Musfeldt, X. Wei, J. Sarrao, Z. Fisk, H. Negishi, M. Inoue, H.-J. Koo and M.-H. Whangbo J. Phys. IV France, 09 PR10 (1999) Pr10-251-Pr10-253 DOI: 10.1051/jp4:19991063
