TY JOUR TI STUDY OF PRODUCTION FUNCTIONS OF A PORT TERMINAL DURING THE TRANSITION TO THE USE OF MOBILE HANDLING SYSTEMS KW production function KW mobile handling systems KW port terminal KW cargo handling KW cargo turnover KW cargo traffic JO Vestnik of Astrakhan State Technical University AU Sinelschikov, E.. AU Turpishcheva, M.. PY 2018 IS 2018 PB Astrakhan State Technical University