A. P. Birchenko, V. A. Maidanov, N. P. Mikhin, S. S. Sokolov, and Ya. Yu. Sopelnyk, Observation of a solid phase under measuring the 3He diffusion coefficient in the nanopores of the MCM-41 adsorbent, Low Temp. Phys. 48, (2022) [Fiz. Nyzk. Temp. 48, 668–673, (2022)] DOI: https://doi.org/10.1063/10.0012646.