1. B.D. Dunlap and G.M. Kalvius,Handbook on the Physics and Chemistry of the Actinides, Vol. 2, ed. A.J. Freeman and G.H. Lander (North-Holland, Amsterdam, 1985) Ch. V; B.D. Dunlap and G.M. Kalvius,The Actinides: Electronic Structure and Related Properties, Vol. I, ed. A.J. Freeman and J.B. Darby (Academic Press, New York, 1974) Ch. V.
2. B.D. Dunlap and G.M. Kalvius, in:Mössbauer Isomer Shifts, ed. G.K. Shenoy and F.E. Wagner (North-Holland, Amsterdam, 1978) Chs. 2 and 11.
3. Symp. Far. Soc.;J.A. Stone,1968
4. J.P. Desclaux and A.J. Freeman, given by A.J. Freeman and D. E. Ellis in ref. [2],—, Ch. IV, p. 151.
5. J.B. Mann, given by B.D. Dunlap in ref. [2],—, Ch. XI.