References for Bertha Swirles Jeffreys


  1. J A Hudson, Lady Bertha Swirles, 1903-1999, Astronomy & Geophysics 41 (3) (2000), 36-37.
  2. M Walmsley, Lady Jeffreys 1903-1999, The Mathematical Gazette 84 (500) (2000), 321-323.
  3. R M Williams, Obituary : Bertha Jeffreys, The Independent (Wednesday, 22 December 1999).