Skrivelse fra Kommissionen til medlemsstaterne SG(91) D/4577 af 4. marts 1991: Meddelelse til medlemsstaterne om proceduren for anmeldelse af statsstøtte samt proceduren, når støtte ydes i strid med EØF-Traktatens artikel 93, stk. 3.
Letter from the Commission to the Member States SG(91) D/4577 of 4 March 1991 : Communication to the Member States concerning the procedure for the notification of aid plans and procedures applicable when aid is provided in breach of the rules of Article 93(3) of the EEC Treaty.