1. Kernresonanzfluoreszenz von Gammastrahlung in Ir191
2. Kernresonanzabsorption von Gammastrahlung in Ir191
3. Proc. First Conf. on the Mössbauer Effect,1960
4. Proc. Second Intern. Conf. on the Mössbauer Effect,1962
5. Proc. Third Intern. Conf. on the Mössbauer Effect, Cornell Univ.,1964