Uppsala University Library

Veluppillai. Buddhism among Tamils in pre-colonial Tamilakam and Ilam: Prologue. The pre-Pallava and the Pallava period. Uppsala University Library. 2002. 

Diodorus Siculus. Almqvist & Wiksell, Uppsala 1970. Kenneth S. Sacks: Diodorus Siculus and the First Century. University Press, Princeton, New Jersey 1990

Sciences, Uppsala University (in Swedish), accessdate=2010-12-10 [3] （页面存档备份，存于互联网档案馆）, Nordisk Familjebok, Project Runeberg, Linköping University (in Swedish)

Linnaeus. Linné on line. Uppsala University. [3 October 2011]. （原始内容存档于2011-06-08）.  Linnaeus deceased. Linné on line. Uppsala University. [3 October 2011].

Cambridge Medieval History:Germany and the Western Empire III. Cambridge University Press. 1964.  Weinfurter, Stefan. The Salian Century: Main Currents in