5Saleh,Joseph H,Jordan,Nicole C.Shifting the emphasis:From cost models to satellite utility or revenue models:The case for a value-centric mindset in space system design[J].Act Astronautics,2007,21(11):889-900.
6Mostafa Jafari.Knowledge management in Iran aerospace industries:a study on critical factors[J].Aircraft Engineering&Aerospace Technology.2007,8(07):375-389.