USGS

U.S. Geological Survey Open-File Report 01-257

By Kinga M. Revesz, Jurate M. Landwehr, and Jerry Keybl


ACKNOWLEDGMENTS

We thank Tyler B. Coplen for his support in all aspects of the project, and Isaac J. Winograd for his help in ascertaining the 1998 re-sampling procedure and for many useful discussions.


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