1. G. H. Lander, “Crystalline Field and Structural Effects in F‐electron Systems,” J. E. Crow, R. P. Guertin and P. W. Mihalisin, Eds., Plenum, New York, 1980, p. 215–227.
2. W. J. L. Buyers, A. F. Murray, T. M. Holden, E. C. Svensson, P. de V. DuPlessis, G. H. Lander and O. Vogt, “Proc. Int. Conf. on Actinides and Related 4f Systems,” Zurich 9–11 April, 1980, Physica (to be published).
3. A. F. Murray and W. J. L. Buyers, Ref [1] p. 257–267.
4. M. Loewenhaupt, S. Horn, F. Steglich, E. Holland‐Moritz and G. H. Lander, J. de Physique 40, C4–142 (1979).
5. T. M. Holden, W. J. L. Buyers, E. C. Svensson and G. H. Lander, to be published.