Journal Article AuthorM. Palmer, A.P. Covich, B.J. Finlay, J. Gibert, K.D. Hyde, R.K. Johnson, T. Kairesalo, Sam Lake, C.R. Lovell, R.J. Naiman, C. Ricci, F.F. Sabater, David StrayerYear of Publication 1997 Journal Ambio Volume 26 Pages 571-577 DOI Google Scholar