@misc{_Nature_1899,
 year={1899},
 rights={Domena publiczna (Public domain)},
 publisher={Macmillan and Co.},
 language={eng},
 type={czasopismo},
 title={Nature : a Weekly Illustrated Journal of Science. Volume 61, 1899 November 23, [No. 1569]},
 keywords={nauki matematyczno-przyrodnicze, nauka},
}