Hughen K.A, Southon J., Lehman S.J, Peterson L.C, Overpeck J.T.  2000.  Radiocarbon calibration and abruptchanges in atmospheric 14Cconcentration during Marine Isotope Stage 3. American Geophysical Union. 

Kerwin M.W, Overpeck J.T, Webb R.S, DeVernal A., Rind D.H, Healy R.J.  1999.  The role of oceanic forcing in mid-Holocene Northern Hemisphere climatic change. Paleoceanography. 14(2):200-210.