1. Fosforiidisõda, 1971–1989 (Phosphorite War, 1971–1989);Aare,1992
2. Ader, A., Tamm, M., Wojciechowski, L., 2012. The zone: The heart of Kalarand. Online: http://www.goethe.de/ins/sk/prj/mak/tal/en10012088.htm (accessed 14 April 2016).
3. Ahonen, E., Ahonen, H., Arjukese, R., Einasto, Ü., Heinsalu, I., Inno, K., Inno, U., Parek, L., Pesti, A., Ratas, E., Silla, P., Tarto, E., Udam E., 1982. Apell Eestist Soomele: Ärge tulge ehitama Muuga (A plea from Estonia to Finland: Don’t come to build the Muuga harbour). Välis-Eesti, 14 December.
4. The legal status of Russians in Estonian privatisation legislation 1989–1995;Andersen;Europe-Asia Studies,1997
5. The greening imaginary: urbanized nature in Germany’s Ruhr region;Angelo;Theory and Society,2019