Schmidt, Falko, et al. “A Density-Functional Theory Study of Hole and Defect-Bound Exciton Polarons in Lithium Niobate.”10.3390/cryst12111586__Crystals, vol. 12, no. 11, 1586, MDPI AG, 2022, doi:10.3390/cryst12111586.

Schmidt, Falko, et al. “Electron Polarons in Lithium Niobate: Charge Localization, Lattice Deformation, and Optical Response.”10.3390/cryst11050542__Crystals, vol. 11, MDPI, 2021, p. 542, doi:10.3390/cryst11050542.