Grattan-Guinness, I. (September 2001). "The interest of G. H. Hardy, F.R.S., in the philosophy and the history of mathematics". Notes and Records of the Royal Society of London. 55 (3). The Royal Society: 411–424. doi:10.1098/rsnr.2001.0155. S2CID146374699.
Grattan-Guinness, I. (September 2001). "The interest of G. H. Hardy, F.R.S., in the philosophy and the history of mathematics". Notes and Records of the Royal Society of London. 55 (3). The Royal Society: 411–424. doi:10.1098/rsnr.2001.0155. S2CID146374699.