1. Henkel H. and Pesonen L.J. (1992). Impact craters and craterform structures in Fennoscandia // Tectonophysics. - Vol. 216, Iss. 1-2, P. 31-40
  2. CEID v0.30.06.12, compiled by S. Levesque (Google Earth)


Рельеф Google Earth.



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