JUDGMENT OF THE COURT OF FIRST INSTANCE of 14 May 1998 in Case T-348/94: Enso Española SA v. Commission of the European Communities (Competition - Article 85(1) of the EC Treaty - Right to an independant and impartial tribunal - Right of the defence - Statement of reasons - Fine - Determination of the amount - Method of calculation - Mitigating circumstances - Principle of equal treatment - Principle of proportionality)