Management of nutrition in forests under stress  proceedings of the international symposium, held in Freiburg, Germany, September 18-21, 1989 
edited by H.W. Zottl, R.F. Huttl 
 - Dordrecht  :  Kluwer Academic Publisher,s  1991 
 - 668 p. :  ill. ;  26 cm. 
<br/><br/><label>ISBN: </label>0792312465 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forest soils--Fertilization--Congresses<br/>Trees--Effect of stress on--Congresses<br/>Trees--Nutrition--Congresses<br/>Forest management--Congresses<br/>Forest ecology--Congresses<br/>Trees--Effect of pollution on--Congresses