References
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- Kajander, J., 1995: Cryophenological records from Tornio. — Mimeograph Series of the National Board of Waters and the Environment no. 552, 189 p.
- Kuusisto, E., 1994: The ice break-up series of Daugava and Tornio Rivers — the two longest in the world? — Tenth International NRB Symposium and Workshop, Spizsbergen, Norway, Aug. 1994: 418–428.
- Livingstone, D. M., 1997: Break-up dates of Alpine lakes as proxy data for local and regional mean surface air temperatures. — Clim. Change 37: 407–439.