Valenti, Gianluca: 'Separation of hydrogen isotopes by cryogenic distillation' (Energy Engineering, 2017), 'Hydrogen Production, Separation and Purification for Energy', Chap. 15, pp. 433-456, DOI: 10.1049/PBPO089E_ch15
IET Digital Library, https://digital-library.theiet.org/;jsessionid=eogv7cb1ca19.x-iet-live-01content/books/10.1049/pbpo089e_ch15