EN 300 188-4 - : References

This document references the following standards:
EN 300 188-1
EN 300 188-2
EN 300 188-5
EN 300 196-1
ISO 9646-1
ISO 9646-2
ISO 9646-3
ISO 9646-4
ISO 9646-5
ITU-T I.411
ITU-T Q.931
ITU-T X.209
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