TY JOUR TI The Southern Federal District development analysis in the context of external sanctions KW Southern Federal District KW economic sanctions KW industrial production index KW factor analysis KW regional economy KW sustainability KW Astrakhan region KW investments KW forecasting KW socio-economic development JO Vestnik of Astrakhan State Technical University. Series: Economics AU Arykbaev, R.. AU Antipov, M.D. PY 2025 IS 2025 PB Astrakhan State Technical University