@article{Astrein2021the,
author={Astrein, V.V.},
title={The place of COLREGs in the realities of changing shipping (To the 50th anniversary of COLREGs)},
journal={Operation of Maritime Transport},
publisher={Budget Educational Institution of Higher Education “Admiral Ushakov State Maritime University”},
year={2021},
pages={90-102},
volume={},
issue={4},
}