Friedrich Engel arrived at Christiania to help him, with the support of Klein and Adolph Mayer (who were both professors at Leipzig by then)
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Friedrich Engel arrived at Christiania to help him, with the support of Klein and Adolph Mayer (who were both professors at Leipzig by then)
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-18 from Wikipedia. The archived copy is preserved so this citation survives link rot.