The following sources were consulted in the preparation of the article “13 cities built in places where humans were never meant to live.”
- Conquering the permafrost: urban infrastructure development in Norilsk, Russia
- Geology and Development of the Lomonosov Deposit, Northwestern Russia
- An Ending and a Beginning
- Exploration and uranium mining in Niger
- Mauritania Country Environmental Strategy Paper
- Excessive Erythrocytosis and Chronic Mountain Sickness in Dwellers of the Highest City in the World
- History – Opal Capital of the World
- Volcano Watch — Nyirangongo — Could it happen here?
