1. Pesonen L.J. (1996). The geophysical signatures of terrestrial impact craters. Role Impact Process. Geol. and Biol. Evol. Planet Earth: Int. Workshop, Postojna, Sept. 27 - Oct. 2, 1996: Abstr. Geol. West Sloven. Field Guide , Ljubljana, P. 61-62
  2. Pesonen L.J., Jarvela J., Sarapaa O., Pietarinen H. (1996). The Iso-Naakkima meteorite impact structure: Physical properties and paleomagnetism of a drill core . Meteorit. and Planet. Sci., Vol.31, A105-106
  3. Pekkarinen Lauri (2002). Haukivuoren ja Pieksamaen Kartta-alueiden kalliopera . Suom. geol. kartta: Kallioperakarttojen selitykset - 2002. - N 3231-3232, P. 1-108
  4. Jarmo Moilanen (2004). References.
  5. John G. Spray, Director PASSC (2005). Impact Structures listed by Name. Current total number of confirmed impact structures: 172 .
  6. Osinski Gordon R. (2006). The geological record of meteorite impacts. 40th ESLAB First International Conference on Impact Cratering in the Solar System, 8-12 May 2006., Noordwijk,The Netherlands


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