SAVICH, S. V.; BOYKO, Y. I.; KHADZHAY, G. Y.; REVYAKINA, M. G.; VOVK, R. V.; AVRAMCHUK, O. Y.; GRALEWSKI, J. Structural relaxation of НоBa2Cu3O7-δ single-crystals with a reduced oxygen content in the process of application and removal of hydrostatic pressure. Journal of V. N. Karazin Kharkiv National University. Series Physics, n. 27, p. 59-67, 2 Jun. 2018.