Scheele, Carl Wilhelm (1781) "Tungstens bestånds-delar" (页面存档备份,存于互联网档案馆) (Tungsten's [i.e., Scheelite's] constituents), Kungliga Vetenskaps Academiens Nya Handlingar (Royal Scientific Academy's New Proceedings), 2: 89–95. (in Swedish)
Scheele, Carl Wilhelm (1781) "Tungstens bestånds-delar" (页面存档备份,存于互联网档案馆) (Tungsten's [i.e., Scheelite's] constituents), Kungliga Vetenskaps Academiens Nya Handlingar (Royal Scientific Academy's New Proceedings), 2: 89–95. (in Swedish)