‘Light’ and ‘heavy’ work in the housekeeping service of a hospital. Messing, K., Chatigny, C., & Courville, J. Applied Ergonomics, 29(6):451–459, 1998.
bibtex   
@article{messing_light_1998,
	title = {‘{Light}’ and ‘heavy’ work in the housekeeping service of a hospital},
	volume = {29},
	number = {6},
	journal = {Applied Ergonomics},
	author = {Messing, Karen and Chatigny, Céline and Courville, Julie},
	year = {1998},
	pages = {451--459},
}

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