Effectiveness of extended producer responsibility policies implementation: The case of Portuguese and Spanish packaging waste systems Journal of Cleaner Production Journal Article S. Rubio T. R. P. Ramos M. M. R. Leitão A.P. Barbosa-Povoa Publication Year of Publication: 2019 Volume: 210 Pagination: 217-230 Identifiers ISSN: 0959-6526 Other Numbers: 2-s2.0-85057189723 Locators DOI: 10.1016/j.jclepro.2018.10.299 Sustainable Development Goals