Found in articles
the SS & German Police. 1 Reichsführer SS – Gruppenführer (Georg Ahrens to Karl Gutenberger). R. James Bender Publishing. 2006. ISBN 978-9-329-70037-2.
組織蛋白去乙醯酶抑制劑
Wieland, Heike; Gimmnich, Petra; Ciossek, Thomas; Maier, Thomas; Sanders, Karl. Distinct pharmacological properties of second generation HDAC inhibitors
Hugh (编). Börne, Karl Ludwig. Encyclopædia Britannica 4 (第11版). London: Cambridge University Press: 255–256. 1911. Mendes-Flohr, Paul R; Reinharz, Jehuda
2001年5月逝世人物列表
（原始内容存档于2017-03-16）. 含有連結內容需訂閱查看的頁面 (link) Olympedia - René Bondoux. olympedia.org. OlyMADMen. [9 July 2023]. （原始内容存档于2024-05-02）. Karl Wilhelm Krause. catalogue
馬克思的異化論
State. Axelos, Kostas. Alienation and Techne in the Thought of Karl Marx. Blackledge, Paul. 2008. "Marxism and Ethics （页面存档备份，存于互联网档案馆）." International