References

[Subset 026]    : ERTMS/ETCS System Requirements Specification, ERA, UNISIG, EEIG ERTMS USERS GROUP (Issue 3.6.0)

[Subset 026-3]   : ERTMS/ETCS System Requirements Specification, Chapter 3: Principles, ERA, UNISIG, EEIG ERTMS USERS GROUP (Issue 3.6.0)

[Subset 026-6]   : ERTMS/ETCS System Requirements Specification, Chapter 6: Management of older System Versions, ERA, UNISIG, EEIG ERTMS USERS GROUP (Issue 3.6.0)

[Subset 026-7]   : ERTMS/ETCS System Requirements Specification, Chapter 7: ERTMS/ETCS language, ERA, UNISIG, EEIG ERTMS USERS GROUP (Issue 3.6.0)

[Subset 034]    : ERTMS/ETCS Train Interface Functional Interface Specification, ERA, UNISIG, EEIG ERTMS USERS GROUP (Issue 3.3.0)

[Subset 040]    : ERTMS/ETCS Dimensioning and Engineering Rules, UNISIG (Issue 3.2.0)

[Subset 041]    : ERTMS/ETCS Performance Requirements for Interoperability, UNISIG (Issue 3.2.0)

[Subset 119]    : ERTMS/ETCS Train Interface, Functional Specification, ERA, UNISIG, UNIFE (inofficial draft)