Mathematical modeling of non-steady heat exchange process in cryogenic coil-wound heat exchangersAleksandr A. Vorob’ev, Dmitriy P. Posanchukov, Aleksandr A. Kozlov and Aleksey V. IvanovMATEC Web Conf., 324 (2020) 01009DOI: https://doi.org/10.1051/matecconf/202032401009