1. The NASA / ARMD Transformative Aeronautics Concepts Program, Transformational Tools & Technologies Project website: http://www.aeronautics.nasa.gov/tacp/ttt/index.html, accessed 08/30/2015.
2. The Microsoft Access website: https://products.office.com/en-us/access, accessed 05/07/2015.
3. Development of a Dedicated Aerospace Vehicle Conceptual Design Knowledge-Based System
4. Standard for Models and Simulations, NASA-STD-7009, 2008.