@misc{_Nature_1893,
 year={1893},
 rights={Domena publiczna (Public domain)},
 publisher={Macmillan and Co.},
 language={eng},
 type={czasopismo},
 title={Nature : a Weekly Illustrated Journal of Science. Volume 47, 1893 March 2, [No. 1218]},
 keywords={nauki matematyczno-przyrodnicze, nauka},
}