00669naa#a2200193#i#450# EN\\bibl\53684 20240517060901.5 1992-8181 20200325b2020####ek#y0engy0150####ca RUS RU Issues of training and certification of tugboat captains Journal article Novorossiysk Budget Educational Institution of Higher Education “Admiral Ushakov State Maritime University” 2020 13 с. Journal article local Буксировка. Каботажное плавание. 656.618 RUS Ustinov V V Subanov E E aumsu.editorum.ru