A. Sauleyeva, Y. Korshikov, K. Turlybekuly, A. Aldiyarov, and D. Yerezhep, Metrological requirements and practical aspects of heat flux calculations in ultracold neutron converters, Low Temp. Phys. 51, 1393–1397, (2025) [Fiz. Nyzk. Temp. 51, 1537–1542, (2025)] DOI: https://doi.org/10.1063/10.0039648.