Mo, S., Ching, W., & French, R. H.(2005).Electronic Structure of a Near Σ11 a-axis Tilt Grain Boundary in {α-A12O3}.Journal of the American Ceramic Society,79, 627–633.
French, R. H., & Mo, S. H.(1996).Optical properties of a near-Sigma-11 a axis tilt grain boundary in alpha-Al2O3.Journal of Physics D: Applied Physics,29(7),1761-1766.