@misc{Heidenstein_Reinhold_(1533-1620)_Reinholdi,
 author={Heidenstein, Reinhold (1533-1620)},
 howpublished={online},
 publisher={Johann Andreae},
 publisher={Kaspar Wächtler},
 language={lat},
 title={Reinholdi Heidensteinii Secretarii Regii Rerum Polonicarum Ab Excessv Sigismundi Augusti Libri XII. [...]},
 type={starodruk},
}