СТЕФАНОВ, Стефан Любомиров. Development of programmable logic controller algorithms for database communication. ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA, [S. l.], v. 8, n. 1, p. 21–29, 2024. DOI: 10.29114/ajtuv.vol8.iss1.266. Disponível em: https://aj.tu-varna.bg/index.php/ajtuv/article/view/266. Acesso em: 2 oct. 2025.