@misc{_Nature_1921, address={London}, address={New York}, access={Dla wszystkich bez ograniczeń}, year={1921}, rights={Domena publiczna (Public domain)}, description={brak nr 2669, 2670, 2677}, publisher={Macmillan and Co.}, language={eng}, title={Nature : a Weekly Illustrated Journal of Science. Volume 106, 1921 January 6, [No. 2671]}, type={czasopismo}, keywords={nauki matematyczno-przyrodnicze, nauka}, }