-
Hong, S., J.P. Candelone, C.C. Patterson, and C.F. Boutron. 1994. Greenland ice evidence of hemispheric lead pollution two millennia ago by Greek and Roman civilizations. Science 265:1841-1843.
-
Hong, S., J.P. Candelone, C.C. Patterson, and C.F. Boutron. 1996. History of ancient copper smelting pollution during Roman and medieval times recorded in Greenland ice. Science 272:246-249.