TY JOUR TI Reinforcement of the fuel system of vessels in connection with the entry into force of the new marpol requirements KW MARPOL requirements KW fuel costs KW installation of a scrubber KW justification of proposals KW selection of the best option JO Operation of Maritime Transport AU Stefan, B.A. AU Timchenko, T.N. PY 2019 IS PB Budget Educational Institution of Higher Education “Admiral Ushakov State Maritime University”