TY JOUR TI Retrospective analysis of the USSR sea trade ports operation in conditions of new economic policy (1921-1928). KW sea trade ports KW cargo turnover KW seaport management system KW new economic policy KW sources of financing KW state budget JO Vestnik of Astrakhan State Technical University. Series: Economics AU Sabaydash, M.. PY 2020 IS PB Astrakhan State Technical University