Cizmas, P., Constantinescu, I. N., and Ionescu, B., Finite Element Method, I.P.B. Press, Bucharest, Romania, 1991.

Books sections

Eickmann, K. et al., A Review of United States Air Force and Department of Defense Aerospace Propulsion Needs, National Research Council, The National Academies Press, Washington, D.C., 2006, ISBN-13 978-0-309-10247-6, 264 pages.