@misc{Freitag_Adam_Architectura,
 author={Freitag Adam},
 howpublished={online},
 publisher={Elzevier A.},
 publisher={Elzevier B.},
 language={ger},
 type={starodruki},
 title={Architectura militaris nova et aucta, oder newe vermehrte fortification ... durch Adamum Freitag...},
 keywords={architektura 17w., wojsko 17w., Fortyfikacje 17w.},
}