@misc{_Nature,
 rights={Domena publiczna (Public domain)},
 publisher={Macmillan and Co.},
 language={eng},
 type={czasopismo},
 title={Nature : a Weekly Illustrated Journal of Science. Volume 9, 1874 February 19, [No. 225]},
 keywords={nauki matematyczno-przyrodnicze, nauka},
}