1. Kolbäcksán. V. Fysikalisk-kemiska undersökningar 1978;Ahl,1979
2. Svenska vattenkvalitetskriterier-eutrofierande ämnen;Ahl;SNV PM 918,1977
3. A gravity corer with a simple valve system;Axelsson;J. Sediment. Petrol.,1978
4. Untersuchungen über den Schwermetallhaushalt in Seen;Baccini;Eidgenössische Technische Hochschule Zürich,1976
5. An annotated literature survey of methods for determination of effects and fate of pollutants in aquatic environments;Blanck;SNV PM 1050,1978