1. Development of ancient lake Päijänne and the history of the surrounding forests;Aario;Annales Academiae Scientiarum Fennicae, A III,1965
2. On deglaciation in southern and western Finland;Aartolahti;Fennia,1972
3. The Holocene history of the southwestern Baltic Sea as reflected in a sediment core from the Bornholm Basin;Andrén;Boreas,2000
4. Diatom analysis;Battarbee,1986
5. Berglund, B.E., Sandgren, P., Yu, S., Barnekow, L., Hannon, G., Jiang, H., Skog, G., 2001. The Ancylus Lake and Littorina Sea in Blekinge, South Sweden. In: Brenner, U. (Ed.), Baltic Sea Science Congress 2001, Past, Present and Future—A Joint Venture, Abstract Volume. Stockholm Marine Research Centre, Stockholm pp. 83.