F. Gerrish et A.G.B. Ward, « Sylvester's matrix equation and Roth's removal rule », The Mathematical Gazette, vol. 82, no 495, , p. 423–430 (DOI10.2307/3619888, JSTOR3619888).
F. Gerrish et A.G.B. Ward, « Sylvester's matrix equation and Roth's removal rule », The Mathematical Gazette, vol. 82, no 495, , p. 423–430 (DOI10.2307/3619888, JSTOR3619888).