Yue Chen Chen, Y., Jayasekera, T., Calzolari, A., Kim, K. W., & Buongiorno Nardelli, M. (2010). Thermoelectric properties of graphene nanoribbons, junctions and superlattices. Journal of Physics: Condensed Matter, 22(37), 372202. https://doi.org/10.1088/0953-8984/22/37/372202 Lee, D. H., Chen, Y., Lee, K.-A., & Hong, S. (2008). A differential HBT power cell and its model. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 50(9), 2262–2268. https://doi.org/10.1002/mop.23684