Media type: E-Article Title: Exact analytical solution of the energy problem of a tetrahedral system of four exchange-coupled S=1/2spins Contributor: Buluggiu, E Published: IOP Publishing, 1986 Published in: Journal of Physics C: Solid State Physics, 19 (1986) 1, Seite L7-L13 Language: Not determined DOI: 10.1088/0022-3719/19/1/002 ISSN: 0022-3719 Keywords: General Physics and Astronomy ; General Engineering ; Condensed Matter Physics Origination: Footnote: