@misc{Kelvin_William_Thomson_Electrification,
 author={Kelvin, William Thomson},
 howpublished={online},
 publisher={Macmillan},
 language={eng},
 type={artykuł},
 title={Electrification of air by Röntgen rays},
 keywords={promieniowanie rentgenowskie, Smoluchowski, Marian (1872-1917)},
}