NIKOLOV, Kalin; SIMOV, Mihail; STREBLAU, Maik Jurgen. Experimental study on HHO electrolyzer efficiency – influence of the number of plates and their distance. ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA, [S. l.], v. 6, n. 1, p. 18–27, 2022. DOI: 10.29114/ajtuv.vol6.iss1.252. Disponível em: https://aj.tu-varna.bg/index.php/ajtuv/article/view/252. Acesso em: 2 oct. 2025.