Silesian Institute - AbsoluteAstronomy.com

The Silesian Institute is one of the related organizations:

the Silesian Institute in Katowice
Silesian Institute in Katowice
The Silesian Institute in Katowice was a regional scientific organization collecting local information about Polish region of Silesia, working in Katowice in years 1934-1939 and 1945-1949, and during the Nazi occupation of Poland, during World War II as an underground movement in Warsaw, Kraków...

(Instytut Śląski w Katowicach)
the Silesian Institute in Opole (Instytut Śląski w Opolu)
the Silesian Scientific Institute in Katowice (Śląski Instytut Naukowy w Katowicach)

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