-
Buck, C.F., P.A. Mayewski, M.J. Spencer, S.I. Whitlow, M.S. Twickler, and D. Barrett. 1992. Determination of major ions in snow and ice cores by ion chromatography. Journal of Chromatography 594:225-228.
-
Mayewski, P.A., W.B. Lyons, M.J. Spencer, M.S. Twickler, C.F. Buck, and S.I. Whitlow. 1990. An ice core record of atmospheric response to anthropogenic sulphate and nitrate. Nature 346:554-556.