@article {28132,
	title = {An analysis of construction productivity differences between Canada and the United States},
	journal = {Construction Management and Economics},
	volume = {32},
	year = {2014},
	pages = {595-607},
	url = {https://doi.org/10.1080/01446193.2013.848995},
	author = {Hassan Nasir and Hani Ahmed and Carl Haas and Paul M Goodrum}
}