1. DIN 52 292, 1984.
2. Hearn, E. J., Mechanics of Materials: An Introduction to the Mechanics of Elastic and Plastic Deformation of Solids and Structural Components, Vol. 2. 2nd edn. Pergamon, Oxford, 1985.
3. Basu, D., Syskakis, E. 5th IEA workshop, Jülich, Germany, 1993. In Proceedings of SOFC Materials, Process Engineering and Electrochemistry, pp. 309–318.
4. Strength-probability-time (SPT) relationships in ceramics