山羊百科，林文智老師的植物、山岳、攝影紀錄

• 《中国植物志》 第46卷 (1981) >> 178页 PDF >> 粗柄槭 Acer tonkinense；http://www.iplant.cn/info/Acer%20tonkinense?t=z
• FOC Vol. 11 Page 530；35. Acer tonkinense Lecomte, Fl. Indo-Chine. 1: 1054. 1912.；粗柄枫；http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200013129
  • Illustration；http://www.efloras.org/object_page.aspx?object_id=110272&flora_id=2
• Trung tâm Dữ liệu Thực vật Việt Nam；Acer tonkinense Lecomte；https://www.botanyvn.com/cnt.asp?param=edir&v=Acer%20tonkinense&list=species&lg=en

• Acer tonkinense Lecomte；This species is accepted；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:56834-1
• Acer tonkinense Lecomte is an accepted name；http://www.plantlist.org/tpl1.1/record/kew-2616567

• Acer tonkinense Lecomte, Fl. Indo-Chine [P.H. Lecomte et al.] 1: 1054 (1912).；https://www.biodiversitylibrary.org/item/97603#page/1326/mode/1up

Acer fenzelianum

• 《中国植物志》 第46卷 (1981) >> 181页 PDF >> 河口槭 Acer fenzelianum；http://www.iplant.cn/info/Acer%20fenzelianum?t=z
• FOC Vol. 11 Page 523, 530；36. Acer fenzelianum Handel-Mazzetti, Oesterr. Bot. Z. 82: 250. 1933.；河口枫；http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200012977
  • Illustration；http://www.efloras.org/object_page.aspx?object_id=110273&flora_id=2

• Acer fenzelianum Hand.-Mazz.；This species is accepted；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:56659-1

• Acer fenzelianum Hand.-Mazz.；Oesterr. Bot. Z. 82: 250 1933；Handel-Mazzetti, Heinrich 1933 Kleine Beiträge zur Kenntnis der Flora von China Oesterr. Bot. Z. 82: 245-254
  • Acer tonkinense subsp. fenzelianum (Hand.-Mazz.) A.E.Murray in Kalmia 1: 37 (1969)