(1)
Lubenets, S. V.; Natsik, V. D.; Fomenko, L. S.; Kaufmann, H. .-J.; Bobrov, V.; Izotov, A. N. Influence of Oxygen Content and Structural Defects on Low-Temperature Mechanical Properties of High-Temperature Superconducting Single Crystals and Ceramics. Fiz. Nizk. Temp. 1997, 23, 902-908.