Selected papers from the proceedings of a workshop on nitrogen saturation in forest ecosystems, 21- 23 September 1988, Aberdeen, United Kingdom / ed. by O. Brandon and R.F. HüttlManagement of nutrition in forests under stress / guest ed. H.W. Zöttl and R.F. HüttlManagement of nutrition in forests under stress : proceedings of the international symposium ... at the Albert-Ludwigs-University in Freiburg, Germany, held on September 18-21, 1989 at Freiburg, Germany / guest ed.: H. W. Zöttl and R. F. HüttlNutrient uptake and cycling in forest ecosystems : proceedings of the CEC/IUFRO symposium nutrient uptake and cycling in forest ecosystems, Halmstad, Sweden, June, 7-10, 1993 / ed. by L.O. Nilsson, R.F. Hüttl and U.T. JohanssonSelected papers from the CEC/IUFRO symposium Nutrient uptake and cycling in forest ecosystems : June 7-10, 1993, Halmstad, Sweden / guest ed.: R. F. Hüttl, L. O. Nilsson and U. T. JohanssonMagnesium deficiency in forest ecosystems / ed. Reinhard F. Hüttl and Wolfgang SchaafMinesite recultivation / ed. by Reinhard F. Hüttl, Thomas Heinkele and Joe Wisniewski ; with editorial assistance of Billy M. McCormacMinesite recultivation / ed. by Reinhard F. Hüttl, Thomas Heinkele and Joe WisniewskiChanges of atmospheric chemistry and effects on forest ecosystems : a roof experiment without roof / ed. by Reinhard F. Hüttl and Klaus Bellman