ProGeo '97 in Estonia : proceedings : the Second General Assembly of the European Association for the Conservation of the Geological Heritage : scientific conference : proceedings, Tallinn - Lahemaa National Park, Estonia, June 2-4, 1997 (allikas)

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  • Erratic boulders as natural monuments in EstoniaKirs, Juho; Pirrus, Enn-AavoProGeo '97 in Estonia : proceedings : the Second General Assembly of the European Association for the Conservation of the Geological Heritage : scientific conference : proceedings, Tallinn - Lahemaa National Park, Estonia, June 2-4, 1997c1998 / p. 31-34: ill
    artikkel kogumikus
  • Protection of the geosites and the monograph "Estonian natural monuments"Pirrus, Enn-Aavo; Raudsep, ReinProGeo '97 in Estonia : proceedings : the Second General Assembly of the European Association for the Conservation of the Geological Heritage : scientific conference : proceedings, Tallinn - Lahemaa National Park, Estonia, June 2-4, 1997c1998 / p. 49-52: ill
    artikkel kogumikus
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