Geological background for biodiversity in the Eastern Fennoscandia, Estonia and LatviaSõstra, ÜloNatural and Cultural Landscapes - The Geological Foundation : 9-11 September 2002, Dublin Castle, Ireland : proceedings of a conference2004 / p. 73-76 : ill

Unique landscapes of Karelia (NW Russia) for tourismMakarikhin, V.; Sõstra, ÜloNatural and Cultural Landscapes - The Geological Foundation : 9-11 September 2002, Dublin Castle, Ireland : proceedings of a conference2004 / p. 305-308 : ill