Journal of LuminescencePhoton echo relaxation and hole burning in Tb3+:LiYF4 and LiTbF4G. K. Liu, M.‐F. Joubert, R. L. Cone, B. JacquierPublished Dec 1, 1987• 28 citationsPublisherDOI10.1016/0022-2313(87)90053-6