Effects of accumulation of air pollutants in forest ecosystem : proceeding of a Workshop held at Gottingen, West Germany, May 16-18, 1982 edited by B. Ulrich and J. Pankrath.

Published 1983

Global climate change and human impacts on forest ecosystem : postglacial development, present situation and future trends in Central europe J. Puhe and B. Ulrich.

by Puhe, 1959-
Published 2001