THE CERTIFICATION PROCESS OF DOURO VALLEY WINES: QUALITY DETERMINANTS FOR QUALITY WINES Sara Rodrigues Humberto Ribeiro Sandra Raquel Alves Claudia Miranda Veloso Publication Journal: Economic and Social Development Year of Publication: 2017 Pagination: 895--909 Identifiers Other Numbers: WOS:000578596300090 Alternative titles Google ScholarBibTeXRIS Locators