@misc{Wittyg_Wiktor_(1857-1921)_Wykopalisko,
 author={Wittyg, Wiktor (1857-1921)},
 address={Kraków},
 howpublished={online},
 publisher={Drukarnia Literacka},
 language={pol},
 title={Wykopalisko kujawskie monet IX-XI wieku},
 type={odbitka},
}