旋量狄拉克旋量 三維空間中的旋量(英语:Spinors in three dimensions) Cartan 1913. Quote from Elie Cartan: The Theory of Spinors, Hermann, Paris, 1966, first sentence
七维叉积S2CID 121135913. doi:10.1007/BF02564418. Lounesto, Pertti. Clifford algebras and spinors. Cambridge, UK: Cambridge University Press. 2001. ISBN 0-521-00551-5. [失效連結]