International Journal of Turbo & Jet-Engines. Berlin, Boston: De Gruyter. Web. Retrieved 22 May. 2013, from http://www.degruyter.com/view/j/tjj

International Journal of Turbo & Jet-Engines. Berlin, Boston: De Gruyter. Retrieved 22 May. 2013, from http://www.degruyter.com/view/j/tjj

International Journal of Turbo & Jet-Engines. Berlin, Boston: De Gruyter. Retrieved 22 May. 2013, from http://www.degruyter.com/view/j/tjj