- People Connected to Lund University: Lars Hörmander, Arvid Carlsson, Ernst Wigforss, Gustaf Retzius, Etzel Cardeña, Johannes Rydberg
- Ueber die Spectra von Zinn, Blei, Arsen, Antimon, Wismuth. with: KAYSER & RUNGE. Beiträge zur Kenntniss des Linien-spectra. with: Johannes Robert RYDBERG (1854-1919). Beiträge zur Kenntniss der Linienspectren. by Heinrich Johannes Gustav (1853-1940) & Carl David Tolmé RUNGE (1856-1927). KAYSER, 1894-01-01
- Rydberg, Johannes: An entry from Macmillan Reference USA's <i>Chemistry: Foundations and Applications</i> by Todd W. Whitcombe, 2004
- Rydberg term tables by F Paschen, 1928
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