Full reference OpenMind biblio ref
Kennedy, Edward, W. Henning, and Ehsan Yarshater. 1962. “A Medieval Interpolation Scheme Using Second Order Differences”. In A Locust's Leg: Studies In Honour Of S. H. Taqizadeh, 117-120. London: Percy Lund, Humphries and Co.
{ Edward Kennedy, W. Henning, Ehsan Yarshater, 1962 #1237 }