1. Oxidation of sintered silicon nitride
2. High temperature strength and oxidation behaviour of Er2Si2O7-Si3N4 ceramics
3. G. Richter, G. Grathwohl, A. Geyer, R. Oberacker, F. Porz, in: Proceedings of Fourth Euroceramics, Riccione, Italy, October 2–6, 1995, vol. 3, Gruppo Editoriale Faenza Editrice S.p.A., Faenza, 1995, p. 453.
4. H. Klemm, M. Herrmann, Chr. Schubert, in: Proceedings of Deformation and Fracture in Structural PM Materials, The High Tatras, Slovakia, October 13–16, 1996, vol. 2, Polygrafia SAS, Bratislava, 1996, p. 75.