See eq. (3.1) and similarly eq. (4.1), and subsequent pages, in: Hestenes, D. (2012) [1990]. 〈On decoupling probability from kinematics in quantum mechanics〉. Fougère, P.F. 《Maximum Entropy and Bayesian Methods》. Springer. 161–183쪽. ISBN978-94-009-0683-9. (PDFArchived 2022년 10월 29일 - 웨이백 머신)
Lasenby, A.N.; Doran, C.J.L. (2002). 〈Geometric algebra, Dirac wavefunctions and black holes〉. Bergmann, P.G.; De Sabbata, Venzo. 《Advances in the interplay between quantum and gravity physics》. Springer. 256-283, See p. 257쪽. ISBN978-1-4020-0593-0.
See eqs. (3.43) and (3.44) in: Doran, Chris; Lasenby, Anthony; Gull, Stephen; Somaroo, Shyamal; Challinor, Anthony (1996). Hawkes, Peter W., 편집. 《Spacetime algebra and electron physics》. Advances in Imaging and Electron Physics 95. Academic Press. 272–386, 292쪽. ISBN0-12-014737-8.
See eq. (3.1) and similarly eq. (4.1), and subsequent pages, in: Hestenes, D. (2012) [1990]. 〈On decoupling probability from kinematics in quantum mechanics〉. Fougère, P.F. 《Maximum Entropy and Bayesian Methods》. Springer. 161–183쪽. ISBN978-94-009-0683-9. (PDFArchived 2022년 10월 29일 - 웨이백 머신)