1. Bergström, I., Blomqvist, J., Fant, B., Herrlander, C.J., Lindén, C.J., Wikström, K.: Proc. 12th Int. Winter Meeting on Nuclear Physics, Villars (1974) p. 289
2. Lönnroth, T., Végh, L., Wikström, K., Fant, B.: Z. Phys. A ? Atoms and Nuclei287, 307 (1978)
3. Lönnroth, T.: Department of Physics, University of Jyväskylä, Research Report No. 3/1980, Thesis (unpublished)
4. Lönnroth, T., Blomqvist, J., Bergström, I., Fant, B.: Phys. Scr.19, 233 (1979)
5. Lönnroth, T., Fant, B.: Phys. Scr.18, 172 (1978)