(1)
Manov, M.; Hristov, H. INVESTIGATION AND IDENTIFICATION OF SHIP HULL STEEL GRADE FOR MAINTENANCE AND REPAIR PROCEDURES ON SCIENTIFIC RESEARCH VESSEL RSV 421 "ST. ST. CYRIL AND METHODIUS". SysTechDev 2026, 2, 177-183. https://doi.org/10.68302/std2026.vol2.86.