@book{327053,
	author = {Hamood Al-Khaldi and Majid Al-Towairqi; Prof Farid Gul, Advisor},
	title = {Strapdown Inertial navigation System Error Correction by Celetial Observations},
	publisher = {NUST},
	year = {2009},
	address = {Rwaalpindi},
	note = {BE Project Reports}
}