L. Hedin

The effect of deforestation on organic debris dams
Hedin, L. O., M. S. Mayer, and Gene E. Likens. 1988. “The Effect of Deforestation on Organic Debris Dams”. Verh. Int. Ver. Limnol. 23: 1135-41.
Decrease in precipitation acidity resulting from decreased SO42- concentration
Hedin, L. O., Gene E. Likens, and F.H. Bormann. 1987. “Decrease in Precipitation Acidity Resulting from Decreased SO42- Concentration”. Nature 325: 244-46.