@misc{Grudziński_Tadeusz_(1924–2015)_Polska_1961,
 author={Grudziński, Tadeusz (1924–2015)},
 editor={Institute of History of the Polish Academy of Sciences},
 copyright={Creative Commons Attribution BY-ND 4.0 license},
 address={Warszawa},
 journal={Kwartalnik Historyczny},
 howpublished={online},
 year={1961},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 type={Text},
 title={Polska sztuka wojenna w okresie wczesnofeudalnym},
 URL={http://www.rcin.org.pl/Content/30113/PDF/WA303_32997_A52-KH-R-68-3_Grudzinski.pdf},
 keywords={Poland - armed forces - organization - Middle Ages, Poland - military history - Middle Ages},
}