@misc{Omuth_Christian_(_-1680)_Gymnasii,
 author={Omuth, Christian ( -1680)},
 howpublished={online},
 publisher={Georg Rhete},
 language={lat},
 type={starodruk},
 title={Gymnasii Ethici Exercitatio XV. : De Amicitia. Qvam Præside Henrico Nicolai [...]},
 keywords={Nicolai, Henryk (1605-1660)},
}