Jacobson, N., and K. Mccrimmon. “Quadratic Jordan Algebras of Quadratic Forms With Base Points”. The Journal of the Indian Mathematical Society 35, no. 1-4 (December 1, 1971): 1–45. Accessed November 7, 2024. https://informaticsjournals.co.in/index.php/jims/article/view/16720.