@misc{_2010,
 copyright={Copyright by Wydawnictwo Uniwersytetu Wrocławskiego Sp. z o.o.},
 address={Wrocław},
 howpublished={online},
 year={2010},
 publisher={Wydawnictwo Uniwersytetu Wrocławskiego},
 language={pol},
 language={ger},
 keywords={Warsaw Sejm of 1570, receipts from the crown treasurer and deputies, a protest letter from the Lublin voivode and the Grand Marshal of the Crown Jan Firlej, a protest letter from the Grand Chancellor of the Crown, Walenty Dembiński.},
}