@article {""1999,
	title = {Product certification and Portugal{\textquoteright}s construction industry goal is to improve competitive position in European Union},
	journal = {Quality Progress},
	volume = {32},
	number = {4},
	year = {1999},
	pages = {107-114},
	author = {P Saraiva and Tadeu, A. and Orey, J. and Maria Jo{\~a}o e Ma Rosa}
}
