O demonstrație poate fi găsită în Anexa B din Kondratyuk, L. A.; Krivoruchenko, M. I. (). „Superconducting quark matter in SU(2) color group”. Zeitschrift für Physik A. 344 (1): 99–115. Bibcode:1992ZPhyA.344...99K. doi:10.1007/BF01291027.
Eves 1990, p.494. Eves, Howard (), An introduction to the history of mathematics (ed. 6), Saunders College Publishing, ISBN0-03-029558-0, MR1104435
Cajori 1993, Vol. II, p. 92, no. 462. Cajori, Florian (), 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 (ianuarie 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.
Camarero, Cristóbal (). „Simple, Fast and Practicable Algorithms for Cholesky, LU and QR Decomposition Using Fast Rectangular Matrix Multiplication”. arXiv:1812.02056 [cs.NA].
Sothanaphan, Nat (ianuarie 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.
O demonstrație poate fi găsită în Anexa B din Kondratyuk, L. A.; Krivoruchenko, M. I. (). „Superconducting quark matter in SU(2) color group”. Zeitschrift für Physik A. 344 (1): 99–115. Bibcode:1992ZPhyA.344...99K. doi:10.1007/BF01291027.