@misc{_Nature_1940,
 year={1940},
 rights={Domena publiczna (Public domain)},
 publisher={Macmillan and Co.},
 language={eng},
 type={czasopismo},
 title={Nature : a Weekly Journal of Science. Volume 145, 1940 March 23, No. 3673},
 keywords={nauki matematyczno-przyrodnicze, nauka},
}