Opinion of the European Economic and Social Committee on the — Proposal for a Decision of the European Parliament and of the Council establishing the European Refugee Fund for the period 2008-2013 as part of the General programme Solidarity and management of migration flows — Proposal for a Decision of the European Parliament and of the Council establishing the External Borders Fund for the period 2007-2013 as part of the General programme Solidarity and management of migration flows — Proposal for a Council Decision establishing the European Fund for the Integration of Third-country Nationals for the period 2007-2013 as part of the General programme Solidarity and management of migration flows — Proposal for a Decision of the European Parliament and of the Council establishing the European Return Fund for the period 2008-2013 as part of the General programme Solidarity and management of migration flows (COM(2005) 123 final — 2005/0046 (COD) — 2005/0047 (COD) — 2005/0048 (CNS) — 2005/0049 (COD))