<ul><li><a href=https://www.pts.se/globalassets/startpage/dokument/icke-legala-dokument/rapporter/2018/post/svensk-postmarknad-2018-pts-er-2018-10.pdf target=_blank>Report from the National Postal and Telecom Agency(Service and Competition 2018 The Postal Market in Sweden)</a></li></ul>