TY JOUR TI CONCEPTUAL FRAMEWORK OF THE FEDERAL CONTRACTUAL SYSTEM AND ITS ROLE IN THE EFFICIENT BUDGET SPENDING KW government procurement system KW contracting system KW state and municipal needs KW procurement process KW elements of government procurement system JO Vestnik of Astrakhan State Technical University. Series: Economics AU Mokrenko, A.. PY 2017 IS 2017 PB Astrakhan State Technical University