1. Silvestre-Brac, B., Piepenbring, R.: Phys. Rev. C16, 1638 (1977); C17, 364 (1978); C20, 1161 (1979); C26, 2640 (1982)
2. Piepenbring, R., Silvestre-Brac, B., Szymanski, Z.: Nucl. Phys. A349, 77 (1980); Z. Phys. A ? Atoms and Nuclei318, 49 (1985)
3. Jammari, K., Piepenbring, R., Silvestre-Brac, B.: Phys. Rev. C28, 2136 (1983)
4. Piepenbring, R.: Phys. Rev. C27, 2968 (1983); Capture gamma-ray spectroscopy and related topics 1984 International Symposium, Knoxville, Tennessee. Raman, S. (ed.), p. 38. New York: American Institute of Physics 1985
5. Piepenbring, R.: Z. Phys. A ? Atoms and Nuclei321, 495 (1985)