1. The Civil Code of the Russian Federation (Part One) of 30.11.1994 N 51-FZ
2. The thesis of the applicant for the degree of candidate of economic sciences on the topic: Development of monitoring of economic security factors of small businesses on the basis of a risk-oriented approach", https://science.volgatech.net/upload/documents/defence-of-eses/diss_RyazanovaOApdf
3. Bogdanova T., Bulletin of the University (State University of Management), 32-40 (2013)
4. Karanina E., Sapozhnikova E., Ryazanova O., Kirov: Vyatka State University (Vyatka State University, 2017)
5. Federal Service of State Statistics. Official site, http://kirovstat.gks.ru/