“Effect of Annealing on Dislocation Structure Parameters of Ultrafine-Grained Copper: Comparative Study by Acoustic and X-Ray Methods”. Journal of V. N. Karazin Kharkiv National University. Series Physics, no. 30, Dec. 2019, pp. 17-23, https://doi.org/10.26565/2222-5617-2019-30-2.