Anisotropy of Elastic and Relaxation Properties of the Superconducting 123-YBCO Single Crystal P. P. Pal-Val, L. N. Pal-Val, V. V. Demirsky, V. D. Natsik et M. N. SorinJ. Phys. IV France, 06 C8 (1996) C8-489-C8-492DOI: https://doi.org/10.1051/jp4:19968106