Published in The Journal of the Ceylon Branch of the Royal Asiatic Society of Great Britain & Ireland, in 1884, in volume 8, issue 29, pages 334-339
Created: 2025-12-10, modified: 2025-12-10
Published in Sitzungsberichte der Akademie der Wissenschaften mathematisch-naturwissenschaftliche Klasse, in 1901, in volume 110, pages 409-432
Created: 2017-04-24, modified: 2017-04-24