STOYKOV, E. . HYDROGRAPHIE ACOUSTIC SYSTEMS - MEASUREMENT PRINCIPLES: HYDROGRAPHIE ACOUSTIC SYSTEMS - MEASUREMENT PRINCIPLES. JOURNAL SCIENTIFIC AND APPLIED RESEARCH, [S. l.], v. 24, n. 1, p. 32–37, 2023. DOI: 10.46687/jsar.v24i1.365. Disponível em: https://jsar.ftn.shu.bg/ojs-3.3.0-7/index.php/jsar/article/view/365. Acesso em: 21 nov. 2024.