1. Alvar Saenz-Otero, 2005, “Design Principles for the Development of Space Technology Maturation Laboratories Aboard the International Space Station”, MIT Ph.D. Dissertation, p. 214.
2. NODIS library; http://nodis3.gsfc.nasa.gov/displayDir.cfm?t=NPR&c=7123&s=1B
3. NASA Assessments of Selected Large-Scale Projects, March 2012, Government Accountability Agency, GAO-12-207SP; http://www.gao.gov/assets/590/589016.pdf
4. Alvar Saenz-Otero, 2005, “Design Principled for the Development of Space Technology Maturation Laboratories Aboard the International Space Station,”, MIT Ph.D. Dissertation, p. 199.
5. New Worlds, New Horizons in Astronomy and Astrophysics (2010) by National Research Council of the National Academies.