D.L. Bashlakov, N.V. Gamayunova, L.V. Tyutrina, J. Kačmarčik, P. Szabó, P. Samuely, and Yu.G. Naidyuk, Sub-kelvin Andreev reflection spectroscopy of superconducting gaps in FeSe, Low Temp. Phys. 45, (2019) [Fiz. Nizk. Temp. 45, 1439-1444, (2019)] DOI: https://doi.org/10.1063/10.0000133.