@misc{_Nature_1891,
 year={1891},
 rights={Domena publiczna (Public domain)},
 publisher={Macmillan and Co.},
 language={eng},
 type={czasopismo},
 title={Nature : a Weekly Illustrated Journal of Science. Volume 43, 1891 April 30, [No. 1122]},
 keywords={nauki matematyczno-przyrodnicze, nauka},
}