K.E. Sickafus, J.A. Valdez, J.R. Williams, R.W. Grimes, and H.T. Hawkins, “Radiation induced amorphization resistance in A2O3–BO2 oxides,” in Nucl. Instr. and Meth. in Phys. Res. B, Vol. 191, pp. 549–558, 2002, ISSN: 0168-583X.

K.E. Sickafus, J.A. Valdez, J.R. Williams, R.W. Grimes, and H.T. Hawkins, “Radiation induced amorphization resistance in A₂O₃–BO₂ oxides,” in Nucl. Instr. and Meth. in Phys. Res. B, Vol. 191, pp. 549–558, 2002, ISSN: 0168-583X.