V. I. Kibets, O. I. Kovtun, D. V. Matsokin, V. P. Matsokin, and I. N. Pakhomova, “Reorientation in alkali-halide single crystals under mechanical stress in an initial stage of high-temperature creep”, Physics, vol. 1158, no. 22, pp. 42-44, Jul. 2015.