@misc{Brożek_Jan_Joannis,
 author={Brożek, Jan},
 howpublished={online},
 publisher={In officina Antonij Wośiński},
 language={lat},
 title={Joannis Broscii de numeris perfectis disceptatio. Qua ostenditur a decem millibus ad centies centena millia, nullum esse perfectum numerum, atque ideo ab unitate usque ad centies centena millia, quatuor tantum perfectos numerari},
 keywords={matematyka 17w.},
}