1. R. Hanada: Hyp. Int., 34 (1987) 205
2. K. Alder et al.: Helv. Phys. Acta., 26(1953)761
3. H. Frauenfelder and R. M. Steffen: “α-, ß-, γ-ray spectroscopy”, ed. by K. Siegbahn
4. S. M. Harris: Nucl. Phys. 11(1959) 387
5. Ö21 for b10 or b12 in Table 1 in ref. 1 should read as 21.