Hits 11-13 within 13 documents
Environmental monitoring and reporting by local governments [collection article]
Source: Ed. Sigma, 1989
Hits 11-13 within 13 documents
Author(s): Hoffmann-Lange, Ursula; Wolf, Gunter.- 1981. 717-724p.
Author(s): Weidner, Helmut
Source: Ed. Sigma, 1989
Author(s): Hauß, Friedrich.- 1985. 211-216p.