[Brohan, P., J.J. Kennedy, I. Haris, S.F.B. Tett og P.D. Jones (2006). «Uncertainty estimates in regional and global observed temperature changes: a new dataset from 1850». J. Geophysical Research111: D12106. doi:10.1029/2005JD006548. CS1 maint: Multiple names: authors list (link)]