Dependence of tourism destinations non-market value on the visit rate : the contingent valuation case study of Jägala WaterfallReimann, Mart; Ehrlich, ÜllasManagement for Protection and Sustainable Development : The Fourth International Conference on Monitoring and Management of Visitor Flows in Recreational and Protected Areas : Italy, 14-19 October 2008 : proceedings2008 / p. 239-242 https://mmv.boku.ac.at/refbase/files/reimann_mart_ehrli-2008-dependence_of_touris.pdf

Hydropower versus non-market values of nature : a contingent valuation study of Jägala Waterfalls, EstoniaEhrlich, Üllas; Reimann, MartInternational journal of geology2010 / 3, p. 59-63