WWFF is aware of the abuse of the WWFF reference numbering. In some countries a parallel program is setup using the WWFF numbering, even adding reference numbers that are NOT WWFF valid !
As a reminder, the valid WWFF references are in The WWFF directory. If you doubt about a reference, just check the directory. The code behind the WWFF directory is changed in that way that it’s real time up-to-date.
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