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Andrzej Zybertowicz. Andrzej Zybertowicz born September in Bydgoszcz Polish sociologist assistant professor professor of Nicolaus Copernicus University in Toru adviser of Lech Kaczyski President of the Republic of Poland for state safety Andrzej Zybertowicz ur wrzenia Bydgoszczy polski socjolog doktor habilitowany profesor