Taylor, M.D.; Carter, C.P. Preparation of anhydrous lanthanide halides, especially iodides. Journal of Inorganic and Nuclear Chemistry: 387–391. doi:10.1016/0022-1902(62)80034-7.引文使用过时参数coauthors (帮助)
osha.gov
Yttrium & Compounds, United States Occupational Safety and Health Administration, 2007-01-11 [2008-05-29], (原始内容存档于2013-03-02)
web.archive.org
Yttrium & Compounds, United States Occupational Safety and Health Administration, 2007-01-11 [2008-05-29], (原始内容存档于2013-03-02)