Eves 1990, hlm. 405 Eves, Howard (1990), An introduction to the history of mathematics (edisi ke-6), Saunders College Publishing, ISBN0-03-029558-0, MR1104435
Eves 1990, hlm. 494 Eves, Howard (1990), An introduction to the history of mathematics (edisi ke-6), Saunders College Publishing, ISBN0-03-029558-0, MR1104435
Cajori 1993, Vol. II, p. 92, no. 462 Cajori, Florian (1993), A history of mathematical notations: Including Vol. I. Notations in elementary mathematics; Vol. II. Notations mainly in higher mathematics, Reprint of the 1928 and 1929 originals, Dover, ISBN0-486-67766-4, MR3363427
Sothanaphan, Nat (January 2017). "Determinants of block matrices with noncommuting blocks". Linear Algebra and Its Applications. 512: 202–218. arXiv:1805.06027. doi:10.1016/j.laa.2016.10.004.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)
Camarero, Cristóbal (2018-12-05). "Simple, Fast and Practicable Algorithms for Cholesky, LU and QR Decomposition Using Fast Rectangular Matrix Multiplication". arΧiv:1812.02056 [cs.NA].
Sothanaphan, Nat (January 2017). "Determinants of block matrices with noncommuting blocks". Linear Algebra and Its Applications. 512: 202–218. arXiv:1805.06027. doi:10.1016/j.laa.2016.10.004.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)