Media type: E-Article Title: Proton relaxation and tunneling levels of NH4+ ions in an (NH4)2SnBr6, single crystal Contributor: Ingman, L.P.; Punkkinen, M.; Ylinen, E.E.; Dimitropoulos, C. Published: Elsevier BV, 1986 Published in: Chemical Physics Letters, 125 (1986) 2, Seite 170-173 Language: English DOI: 10.1016/0009-2614(86)85097-7 ISSN: 0009-2614 Keywords: Physical and Theoretical Chemistry ; General Physics and Astronomy Origination: Footnote: