@mastersthesis {49612,
	title = {Quantifying ionospheric impact on GNSS users and developing ionospheric warning system for middle and high latitude region},
	volume = {Geomatrics Engineering},
	year = {2009},
	note = {CANGIM (Canadian GPS Network for Ionosphere Monitoring)},
	pages = {177},
	address = {University of Calgary},
	url = {http://www.collectionscanada.gc.ca/obj/s4/f2/dsk2/tape15/PQDD_0024/MQ31456.pdf},
	author = {Sadeque, Mohammed Zafer}
}
