Hurrell, J.W.; Dickson, R.R. (2004). Climate variability over the North Atlantic, in: Stenseth, N.Ch. et al. (Ed.) Marine ecosystems and climate variation. The North Atlantic: a comparative perspective. pp. 15-31, plates 1-3
In: Stenseth, N.Ch. et al. (2004). Marine ecosystems and climate variation: The North Atlantic - A comparative perspective. Oxford University Press: Oxford. ISBN 0-19-850748-8. XII, 252 pp. https://dx.doi.org/10.1093/acprof:oso/9780198507499.001.0001, meer
