Zharkov, I. P., A. N. Ivaschenko, Sаfrоnоv V. V., Sеlivanov A. V., and Sоlоnetsky A. G. “Extension of Temperature Control Interval in Liquid-Flow Helium Cryostats”. Ukrainian Journal of Physics 63, no. 10 (October 31, 2018): 916. Accessed March 29, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018084.