Gao, C., A. Robock, S. Self, J. B. Witter, J. P. Steffenson, H. B. Clausen, M. Siggaard-Andersen, S. Johnsen, P. A. Mayewski, and C. Ammann, 2006, The 1452 or 1453 A.D. Kuwae eruption signal derived from multiple ice core records: Greatest volcanic sulfate event of the past 700 years,J. Geophys. Res., 111, D12107, doi:10.1029/2005JD006710.