@inbook {28177,
	title = {Improving concrete trade labor productivity through the use of innovations},
	booktitle = {Construction Research Congress 2012: Construction Challenges in a Flat World},
	year = {2012},
	url = {https://doi.org/10.1061/9780784412329.249},
	author = {Gabriel B Dadi and Mahdi Safa and Paul M Goodrum and Carl T Haas and Carlos H Caldas and David MacNeel}
}