Morais, F., Carvalhaes-Dias, P., Duarte, L., Spengler, A., De Paiva, K., Martins, T., Cabot, A., Dias, J.S. "Optimization of the TEGs configuration (series/parallel) in energy harvesting systems with low-voltage thermoelectric generators connected to ultra-low voltage DC-DC converters" Energies 13, 9, pp. 2297 - 2020 DOI: 10.3390/en13092297