Eesti maapõuerikkusiRaudsep, Rein; Räägel, Veena; Savitskaja, Lehte; Orru, Mall; Kattai, Vello1993 https://www.ester.ee/record=b1063470*est

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, 19971998 / p. 49-52: ill