Cunningham, Clifford (2004). "Discovery of the Missing Correspondence between Carl Friedrich Gauss and the Rev. Nevil Maskelyne (1802–5)". Annals of Science. 61 (4): 469–481. doi:10.1080/00033790310001660164. S2CID144853677.
Cunningham, Clifford (2004). "Discovery of the Missing Correspondence between Carl Friedrich Gauss and the Rev. Nevil Maskelyne (1802–5)". Annals of Science. 61 (4): 469–481. doi:10.1080/00033790310001660164. S2CID144853677.