1. Bertalanffy L. von, 1969. General Systems Theory – Overview of Problems and Results. System Studies: Yearbook. Moscow, Science, pp. 30-54.
2. In Omsk, the meeting on the case of torture in colony IK-7 decided to hold behind closed doors. URL: https://www.novayagazeta.ru/news/2018/05/18/141796-v-omske-zasedanie-po-delu-o-pytkah-v-kolonii-ik-7-reshili-provesti-v-zakrytom-rezhime.
3. Gelman V., Hopf T. (ed.), 2003. Center and regional identities in Russia. Saint Petersburg, European University Press in St. Petersburg; Moscow, Summer garden.
4. Goloshubin I. (ed.), 1914. Reference book of the Omsk Diocese. Omsk, Irtish.
5. City behind the “thorn” – the NKVD investigation prison. URL: http://nkvd.tomsk.ru/projects/seversk_project.