1. Reinstoffprobleme III;Haasen,1967
2. Proc. III. Int. Symp. Reinstoffe in Wissenschaft und Technik;Sěsták,1970
3. Proc. 2nd Intern. Conf. Strength of Metals and Alloys;Christian,1970
4. The effect of high vacuum purification on the mechanical properties of niobium single crystals
5. Inherent lattice hardening and interstitial solution hardening in tantalum