SABOU, Dana-Maria, et al. “SPECTRAL GRAPHITE AS ELECTRODE MATERIAL FOR THE ALL-VANADIUM REDOX FLOW BATERY”. Studia Universitatis Babeș-Bolyai Chemia, vol. 60, no. 3, Sept. 2015, pp. 193-0, https://studia.reviste.ubbcluj.ro/index.php/chemia/article/view/8480.