1. I. Hunyadi andI. Angeli, Nucl. Phys.,A119, 525, 1968.
2. R. J. Howerton, Tabulated Neutron Cross Sections 0.001–14.5 MeV. UCRL-5226, University of California Radiation Laboratory, 1958.
3. J. R. Stehn, M. D. Goldberg, B. A. Magurno andR. Wiener Chasman; Neutron Cross Sections, BNL-325 2nd Ed, Supplement No 2. Sigma Center, Brookhaven National Laboratory.
4. D. G. Foster, Jr. andD. W. Glasgow, private communication.
5. H. R. Collard, J. R. B. Elton andR. Hofstadter, Nuclear Radii,Landolt-Börnstein, New Series, Group I. Vol. 2., Springer Berlin, 1967.