A special issue of the journal Ethnicities produced in connection with RECODE was published in August 2014:

Peter A. Kraus and Giuseppe Sciortino, eds., 2014:
The Diversities of Europe
Ethnicities Special Issue 14 (4)

Articles:

Peter A. Kraus and Giuseppe Sciortino, 2014:
The diversities of Europe: From European modernity to the making of the
European Union
Ethnicities Special Issue 14 (4), pp. 485-497.

Peter A. Kraus and Rūta Kazlauskaitė-Gürbüz, 2014:
Addressing linguistic diversity in the European Union: Strategies and
dilemmas
Ethnicities Special Issue 14 (4), pp. 517-538.