Aguado-Puente, P., Bristowe, N., Yin, B., Shirasawa, R., Ghosez, P., Littlewood, P., & Artacho, E. (2015). Model of two-dimensional electron gas formation at ferroelectric interfaces. Physical Review B (Condensed Matter), 92(3), Article 035438. https://doi.org/10.1103/physrevb.92.035438