Raudjärv, Matti. “Loodetav Tulevikuinformatsioon (2018–2022). Die Zukunftsinformation (2018–2022). Expected Future Information (2018–2022)”. Estonian Discussions on Economic Policy 24, no. 1 (August 8, 2016). Accessed April 21, 2019. http://ojs.utlib.ee/index.php/TPEP/article/view/12998.