Raudjärv, Matti. “Loodetav Tulevikuinformatsioon (2019-2022). Die Zukunftsinformation (2019-2022). Expected Future Information (2019-2022)”. Estonian Discussions on Economic Policy 25, no. 1 (September 19, 2017). Accessed May 27, 2018. http://ojs.utlib.ee/index.php/TPEP/article/view/13742.