@misc{Institute_of_History_of_the_Polish_Academy_of_Sciences_Pieńki,
 author={Institute of History of the Polish Academy of Sciences},
 copyright={Rights Reserved - Free Access},
 journal={Files of the Historico-Geografical Dictionary of Masovia in the Middle Ages},
 howpublished={online},
 language={lat ; pol},
 type={Text},
 title={Pieńki Borowe. Files of Wizna district in the Middle Ages. Files of Historico-Geographical Dictionary of Masovia in the Middle Ages},
 URL={http://rcin.org.pl/ihpan/Content/231515/PDF/WA303_244943_WIZ_Pienki-Borowe.pdf},
 keywords={Masovia (Poland ; region) - geography [KABA], Masovia, Middle Ages, settlement, Wizna district},
}