@misc{_Mare,
 address={Amstelaedami},
 howpublished={online},
 publisher={Wit, Frederick de (1630-1706)},
 language={lat},
 language={dut},
 title={Mare Balticum. [...] Nieuwe Pascaert van den Oost Zee. [...]},
 keywords={mapy, 17 w., kartografia, Morze Bałtyckie, mapy żeglarskie},
}