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2001.
1997.
1998.
“Predicting the effects of tropospheric ozone on forest productivity in the northeastern U.S.”
: 217-225.
1996.
1996.
1993.
1994.
1995.
2000.
1989.
“Human influences on the global N budget and their implications for the global carbon budget”
: 117-133.
1995.
1995.
1996.
1996.
1996.
“Executive summary”
SCOPE, 56: 1-16.
1996.
2000.
1996.
2000.
1996.