1. Cryopumps for plasma exhaust of fusion reactors;Boissin;Cryogenics,1990
2. Pumping of gaseous helium using argon-frosted liquid helium cryocondensation pumps;Massmann,1989
3. Forepumping concept for NET torus exhaust;Murdoch,1990
4. Investigation on cryosorption extraction of helium, hydrogen and deuterium by layers of condensed gases;Yuferov;Sov. Phys. Tech. Phys.,1970
5. Continued studies of co-pumping of deuterium and helium on a single, 4 K activated charcoal panel;Walthers,1990