Some recent papers that are available on-line:

List of Publications

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1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
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2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
2020 2021 2022 2023 2024

PRE-PRINTS -- Subject to revision

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