Opinion of the Economic and Social Committee on the proposals for: a Council Regulation concerning the adaptation of Council Regulation ( EEC ) No 1408/71 of 14 June 1971 on the application of social security schemes to employed persons and their families moving within the Community, with a view to applying it to self-employed persons and their families, a Council Regulation concerning the adaptation of the Annexes to Council Regulation ( EEC ) No 1408071 of 14 June 1971 on the application of social security schemes to employed persons and their families moving within the Community, with a view to to applying it to self-employed persons and their families