1. partly to the vague construction of recommended therefore that new journals
2. abstracts. Some of these journals are not on environmental health in the region
3. indexed; therefore papers cannot be located should be published in English possibly
4. by computer search systems. It is - with an international editorial board.
5. Bredel H Herbarth 0. Epidemiologische Untersuchungen zur akuten Wirkung der Luftverunreinigung. Schr reihe Gesundheit u Umwelt 5: 30-37 1989.