European Commission, Assessment of separate collection schemes in the 28 capitals of the EU, 2015-11-13, p. 68 ([Internet, 2020-02-07](https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=17&ved=2ahUKEwiMidKyk7_nAhXOa1AKHS0lDDkQFjAQegQIBxAB&url=https%3A%2F%2Fec.europa.eu%2Fenvironment%2Fwaste%2Fstudies%2Fpdf%2FSeparate%2520collection_Final%2520Report.pdf&usg=AOvVaw2tSVWgUPPRuMPqp-Zi0wvd))