1.]M. Herrmann, J. Raethel, A. Bales, K. Sempf, I. Sigalas, and M. Hoehn, “Liquid phase assisted densification of superhard B6O materials,” Journal of the European Ceramic Society, vol. 29, no. 12, pp. 2611–2617, 2009.
2.]H. J. Kleebe, S. Lauterbach, T. C. Shabalala, M. Herrmann, and I. Sigalas, “B6O: A correlation between mechanical properties and microstructure evolution upon Al2O3 addition during hot pressing,” Journal of the American Ceramic Society, vol. 91, no. 2, pp. 569–575, 2008.