Driscoll, Charles, Gene Likens, Lars Hedin, and Herbert Bormann. 1989. “Surface Water Chemistry. Reply to Comments”. Environmental Science & Technology 23: 754–759. Referenced from pubs.acs.org: Surface water chemistry. Reply to comments.

Likens, Gene, Herbert Bormann, Lars Hedin, Charles Driscoll, and John Eaton. 1990. “Dry Deposition of Sulfur: A 23-Year Record for the Hubbard Brook Forest Ecosystem”. Tellus B 42: 319–329. Referenced from onlinelibrary.wiley.com: Dry deposition of sulfur: a 23-year record for the Hubbard Brook Forest ecosystem.

Driscoll, Charles, Gene Likens, Lars Hedin, John Eaton, and Herbert Bormann. 1989. “Changes in the Chemistry of Surface Waters”. Environmental Science & Technology 23: 137–143. Referenced from pubs.acs.org: Changes in the chemistry of surface waters.