Monitoring tools of regional economic security E.A. Husainova, L.R. Urazbahtina, N.A. Serkina, E.A. Dolonina and O.V. Filina E3S Web Conf., 124 (2019) 05009 Published online: 10 February 2020 DOI: 10.1051/e3sconf/201912405009