Questione giuridica chiave
Whether the claimant proved a contributory employment of at least 12 months within the reference period.
Decisione estratta
The claimant did not sufficiently prove that she had worked in contributory employment for the required period.
Motivazione estratta
The record lacked credible proof of wage payments, individual insurance account entries, and any indication of contribution payments; later-produced documents were not persuasive.