TY JOUR TI INFLUENCE OF PROFESSIONAL AND OFFICIAL DISTINCTIONS ON LEVEL AND CHANGES OF THE SALARY IN BRANCHES OF THE RUSSIAN ECONOMY KW salary KW categories of the employments KW professional and official group KW kind of activity KW differentiation JO Vestnik of Astrakhan State Technical University. Series: Economics AU Fedorova, L.. PY 2017 IS PB Astrakhan State Technical University