@misc{Rudzki_M.P._Fizyka_1909,
 author={Rudzki, M.P.},
 address={Kraków},
 howpublished={online},
 year={1909},
 publisher={Akademia Umiejętności},
 language={pol},
 title={Fizyka Ziemi},
 keywords={physics of the earth, physics},
}