@misc{Furchhind_Casper_List,
 author={Furchhind Casper},
 howpublished={online},
 language={polski},
 title={List Caspra Furchhinda do Marcjana Wituskiego z 10 XI 1653 r.},
 keywords={Casper Furchhind, Marcjan Wituski, Łowicz},
}