Commission Regulation (EC) No 120/94 of 25 January 1994 amending Regulation (EEC) No 1533/93 laying down certain detailed rules under Council Regulation (EEC) No 1766/92 on the granting of export refunds on cereals and the measures to be taken in the event of disturbance on the market for cereals, and amending Regulation (EEC) No 2131/93 laying down the procedure and conditions for the sale of cereals held by intervention agencies