1
Clean technologies : international symposium. volume 0001 : Final proceedings. Vol. 1. Objektives, programm and general statements. In 3 vols : Karlsruhe, 07.10.1985-18.10.1985.
Book
2
Clean technologies : international symposium. volume 0002 : Final proceedings. Vol. 2. Clean technology practices in the Federal Republic of Germany : Karlsruhe, 07.10.1985-18.10.1985.
Book