@misc{Polski_Rejestr_Statków_Using,
 author={Polski Rejestr Statków},
 howpublished={online},
 publisher={Polski Rejestr Statków},
 language={eng},
 title={Using LNG or other low-flashpoint fuels onboard ships other than gas carriers : 2019 July},
 type={e-książka},
 keywords={gaz ziemny skroplony, gazowce},
}