Media type: E-Article Title: Helium gas purity monitor for recovery systems Contributor: Garrett, S.L.; Swift, G.W.; Packard, R.E. Published: Elsevier BV, 1981 Published in: Physica B+C, 107 (1981) 1-3, Seite 601-602 Language: English DOI: 10.1016/0378-4363(81)90603-3 ISSN: 0378-4363 Origination: Footnote: