@conference {SIEEUM9231,
	title = {Quality of concrete: one example in the north of Portugal},
	journal = {Third International World of Construction Project Management Conference},
	year = {2010},
	month = {2010-01-01 00:00:00},
	pages = {249{\textendash}258},
	publisher = {Coventry University},
	address = {Coventry UK},
	isbn = {978-1-84600-0409},
	url = {http://sieeum.eng.uminho.pt/publicacoes/pub.aspx?pubid=9231},
	author = {Cunha, P. J. and Aguiar, J. B. and Oliveira, P. and Cam{\~o}es, A.}
}