• A brief overview of the history and geology of TallinnNõlvak, Jaak15th Meeting of the Association of European Geological Societies "Georesources and public policy : research, management, environment" : 16-20 September 2007, Tallinn, Estonia : excursion guidebook2007 / p. 5-9 : ill., map https://www.ester.ee/record=b2291671*est