@misc{Polski_Rejestr_Statków_Guidelines,
 author={Polski Rejestr Statków},
 howpublished={online},
 publisher={Polski Rejestr Statków},
 language={eng},
 type={e-książka},
 title={Guidelines for the identification of vibration issues and recommended remedial measures on ships : 2021 March},
 keywords={statki, bezpieczeństwo życia na morzu},
}