TY JOUR TI Methodological principles of digital transformation of modern business personnel management system KW digitalization of HR KW digital transformation of the HR management system KW methodology of HR digitalization KW methodological principles of digital transformation KW the state of digitalization of the HR sphere KW problems of digital transformation of the personnel management system JO Vestnik of Astrakhan State Technical University. Series: Economics AU Adgizalov, S.. PY 2025 IS 2025 PB Astrakhan State Technical University