@article {Hegazy199527,
	title = {Elements of cost estimation: a survey in Canada and the United States},
	journal = {Cost Engineering (Morgantown, West Virginia)},
	volume = {37},
	number = {5},
	year = {1995},
	note = {cited By 27},
	pages = {27-33},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0029296896\&partnerID=40\&md5=edb2cfd356b1d37fab5639376ab51fc7},
	author = {Hegazy, Tarek and Moselhi, Osama}
}