1. BUNI demonstrator TBinterface specification, 81/BT/DP/A/026/b1, (Commission of the European Communities R1081 Deliverable RD/8/03
2. Design and performance specification 81/BT/DP/DS/A/018/b1, (Commission of the European Communities R1081 Deliverable RD/8/01
3. System 2 design and performance specification 81/BT/DP/A/012/b1, (Commission of the European Communities R1081 Deliverable RD/4.2/01
4. System 3 design and performance specification 81/BT/DP/A/013/b1, (Commission of the European Communities