Regarding their Proposal, our team members Klaus Feldmann and Moritz Wille forwarded the article Thinking Europe European: On the Question of Transnational Electoral Lists to the European Parliament, which got published in a special newsletter by the Deutscher Gewerkschaftsbund (German Trade Union Confederation).
You can read the article on their website (www.dgb.de) :
Europa europäisch denken: zur Frage der transnationalen Wahllisten zum Europäischen Parlament | DGB