Myllylä, Y., and O. Andreev. “The Development of the North-West Russia and the Delphi-Method – Evaluation of the Industrial, Social and Logistical Developments in the Murmansk Oblast”. Nordia Geographical Publications, vol. 34, no. 4, Jan. 2005, pp. 37–48, https://nordia.journal.fi/article/view/76216.