@misc{Fujisawa_Rikitaro_(1861–1933)_Note_1891-1892, author={Fujisawa, Rikitaro (1861–1933)}, volume={XXI}, editor={Glaisher, James Whitbread Lee (1848–1928)}, copyright={Public Domain}, address={London ;}, address={Cambridge}, journal={The Messenger of Mathematics}, howpublished={online}, year={1891-1892}, publisher={Macmillan and Co.}, language={eng}, type={Text}, title={Note on formula in spherical harmonics}, URL={http://rcin.org.pl/Content/108942/PDF/WA35_87636_cz294-1892-t21_Art7.pdf}, }