Blacken is a basin in Lake Mälaren, the third-largest lake in Sweden.[1] It is located in the western portion of the lake.[2]
References
- ↑ Brenda M. Healy; Trefor B. Reynoldson; K. A. Coates (1999). Aquatic Oligochaetes. Springer Science+Business Media. p. 173. ISBN 0-7923-5954-2.
- ↑ International Association on Water Quality (1984). Water Research. Elsevier. p. 307.
59°28′N 16°32′E / 59.467°N 16.533°E
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