Media type: E-Article Title: Four dimensional orthogonal groups Contributor: Racah, G. Published: Springer Science and Business Media LLC, 1959 Published in: Il Nuovo Cimento, 14 (1959) S1, Seite 75-80 Language: English DOI: 10.1007/bf03026449 ISSN: 0029-6341; 1827-6121 Keywords: Astronomy and Astrophysics ; Nuclear and High Energy Physics ; Atomic and Molecular Physics, and Optics Origination: Footnote: