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History
Johann Radon
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Johann Karl August Radon was an Austrian mathematician. His doctoral dissertation was on the calculus of variations.
Radon in c. 1920
Radon in c. 1920
Děčín
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Děčín is a city in the Ústí nad Labem Region of the Czech Republic. It has about 47,000 inhabitants. It is the 7th largest municipality in the country by area. Děčín is an important traffic junction.
View over the Elbe Valley
View over the Elbe Valley
Děčín Castle, 1855
Děčín Castle, 1855
Děčín Castle above the Elbe River
Děčín Castle above the Elbe River
Děčín Castle
Děčín Castle