"An account of the Royal Society's Newton telescope". Notes and Records of the Royal Society of London. 50: 1–11. 1996. doi:10.1098/rsnr.1996.0001. S2CID145717959.
"An account of the Royal Society's Newton telescope". Notes and Records of the Royal Society of London. 50: 1–11. 1996. doi:10.1098/rsnr.1996.0001. S2CID145717959.