Weyand, M <br/><br/>
Cost-efficiency aspects for fish passage restoration in the Ruhr River Basin.  [electronic resource] 

 -  Water science and technology : a journal of the International Association on Water Pollution Research  2006 
 - 293-300 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0273-1223 
<br/><br/><label>Standard No.: </label>10.2166/wst.2006.324  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal Migration<br/>Animals<br/>Conservation of Natural Resources--economics<br/>Fishes<br/>Germany<br/>Models, Economic<br/>Rivers