Acoustic characteristics of FeSe single crystalsG. A. Zvyagina, T. N. Gaydamak, K. R. Zhekov, I. V. Bilich, V. D. Fil, D. A. Chareev and A. N. VasilievEPL, 101 5 (2013) 56005DOI: https://doi.org/10.1209/0295-5075/101/56005