Source
https://julkaisut.liikennevirasto.fi/pdf8/lr_2018_arctic_ocean_railway_report_web.pdf,
https://thebarentsobserver.com/en/arctic/2017/05/helsinki-invites-oslo-journey-rail-arctic-coast,
http://www.atimes.com/article/high-hopes-among-scandinavian-backers-ice-silk-road-east/, https://thebarentsobserver.com/en/arctic/2019/09/arctic-railway, https://www.arctictoday.com/the-dream-of-an-arctic-railway-fades-as-sami-herders-signal-veto/