Michaelis, W. <br/><br/>
Air pollution :  dimensions, trends, and interactions with a forest ecosystem / 
W. Michaelis 
 - Berlin :  Springer-Verlag,  1997 
 - 177 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>3540613234  RM265.30 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forest declines--Germany--Humberg Region<br/>Air--Pollution--Environmental aspects--Germany--Humberg Region
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Norway spruce--Effect of air pollution on--Germany--Hamburg Region<br/>Norway spruce--Ecology--Germany--Humberg Region