1. Constellation University Institute Project, http://exploration.grc.nasa.gov/Exploration/external/cuip_about.htm.
2. DARPA, DSO – Prognosis program, http://www.darpa.mil/dso/thrust/matdev/prognosis/index.html.
3. Farrar CR, Sohn H, Hemez FM, Anderson MC, Bement MT, Cornwell PJ, et al. Damage prognosis: current status and future needs, Tech. Rep. LA-14051-MS, Los Alamos National Laboratory; 2003.
4. Harris CE, Starnes Jr JH, Shuart MJ. Advanced durability and damage tolerance design and analysis methods for composite structures, Tech. Rep. NASA TM-2003-212420, National Aeronautics and Space Administration; June 2003.
5. Introduction to damage tolerance analysis methodology;Grandt,1984