@misc{Cygan_Jerzy_Marian_(1924-2006)._Magnetic,
 author={Cygan, Jerzy Marian (1924-2006).},
 howpublished={online},
 publisher={UMCS},
 language={eng},
 type={artykuł},
 title={Magnetic attraction as interpreted by Valerianus Magni},
 keywords={Magni, Valeriano (1586-1661).},
}