- BRITISH JOURNAL OF APPLIED PHYSICS 15 (1964) 993-997
- Czechoslovak Journal of Physics 11 (1961) 883-885.
- Czechoslovak Journal of Physics 11 (1961) 463-465.
- Czechoslovak Journal of Physics 11 (1961) 360-368.
- Czechoslovak Journal of Physics 11 (1961) 1-9.
- Czechoslovak Journal of Physics 11 (1961) 171-178.