@misc{Burnside_William_(1852–1927)_On_1892-1893,
 author={Burnside, William (1852–1927)},
 volume={XXII},
 editor={Glaisher, James Whitbread Lee (1848–1928)},
 copyright={Public Domain},
 address={London ;},
 address={Cambridge},
 journal={The Messenger of Mathematics},
 howpublished={online},
 year={1892-1893},
 publisher={Macmillan and Co.},
 language={eng},
 language={eng},
 type={Text},
 title={On the division of the periods of elliptic functions by 9},
 URL={http://rcin.org.pl/impan/Content/109211/PDF/WA35_88083_cz294-1893-t22_Art13.pdf},
}