Hits 1-2 within 2 documents
Air pollution control policy in the Federal Republic of Germany [journal article]
Source: Environment protection engineering, 12 (1986) 1. p.29-104
Hits 1-2 within 2 documents
Author(s): Weidner, Helmut.- 1988. 42-51p.
Author(s): Weidner, Helmut
Source: Environment protection engineering, 12 (1986) 1. p.29-104