Pipiska, M. ., M. . Frivaldsky, M. . Danko, and J. . Sedo. “Electronically Isolated Measuring Circuit for Multicell Traction Battery Modules Identifying State of Charge (SOC) Values”. Elektronika Ir Elektrotechnika, vol. 25, no. 6, Dec. 2019, pp. 22-27, doi:10.5755/j01.eie.25.6.24822.