Council Regulation (EC) No 1606/98 of 29 June 1998 amending Regulation (EEC) No 1408/71 on the application of social security schemes to employed persons, to self-employed persons and to members of their families moving within the Community and Regulation (EEC) No 574/72 laying down the procedure for implementing Regulation (EEC) No 1408/71 with a view to extending them to cover special schemes for civil servants