Erratic boulders as natural monuments in EstoniaKirs, Juho; Pirrus, Enn-AavoProGEO '97 : brochure of abstracts : the Second General Assembly of the European Association for the Conservation of the Geological Heritage : scientific conference : Tallinn - Lahemaa National Park, June 2nd-4th, 19971997 / p. 35 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, 19971998 / p. 31-34: ill Geological structure of the Baltic seabedPuura, Väino; Floden, T.; Mokrik, R.; All, Tarmo; Kirs, Juho; Konsa, Mare; Soesoo, Alvar; Urtson, KristjanThe Baltic : The Eighth Marine Geological Conference : September 23-28, 2004, Tartu, Estonia : abstracts. Excursion guide2004 / p. 44 Outlines of the Precambrian basement of EstoniaSoesoo, Alvar; Puura, Väino; Kirs, Juho; Petersell, Valter; Niin, Mati; All, TarmoProceedings of the Estonian Academy of Sciences. Geology2004 / 3, p. 149-164 : ill The crystalline basement of Estonia : rock complexes of the Palaeoproterozoic Orosirian and Statherian and Mesoproterozoic Calymmian periods, and regional correlationsKirs, Juho; Puura, Väino; Soesoo, Alvar; Klein, Vello; Konsa, Mare; Koppelmaa, Heino; Niin, Mati; Urtson, KristjanEstonian journal of earth sciences2009 / 4, p. 219-228 : ill https://artiklid.elnet.ee/record=b1943909*est The crystalline basement of Estonia: rock complexes of the Paleoproterozoic Orosirian and Statherian and Mesoproterozoic Calymmian Periods, and regional correlationsPuura, Väino; Kirs, Juho; Klein, Vello; Konsa, Mare; Koppelmaa, Heino; Niin, Mati; Soesoo, Alvar; Urtson, KristjanThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 55 Using a titanium-in-quartz geothermometer for crystallization temperatureestimation of the Palaeoproterozoic Suursaari quartz porphyryEhrlich, Kairi; Verš, Evelin; Kirs, Juho; Soesoo, AlvarEstonian journal of earth sciences2012 / p. 195-204 : ill https://artiklid.elnet.ee/record=b2551734*est