Methodological tools to ensure economic security in the personnel management system of enterprisesGuzaliya Klychova, Alsou Zakirova, Angelina Dyatlova, Aigul Klychova, Evgenia Zaugarova and Nailya ZalyalovaE3S Web Conf., 135 (2019) 04008DOI: https://doi.org/10.1051/e3sconf/201913504008