Court of Justice 7 March 2013, Case C-127/11: Judgment of the Court (Fifth Chamber) of 7 March 2013 (request for a preliminary ruling from the arbeidshof te Antwerpen — Belgium) — Aldegonda van den Booren v Rijksdienst voor Pensioenen (Social security for migrant workers — Article 46a of Regulation (EEC) No 1408/71 — National rules against overlapping — Old-age pension — Increase in the amount paid by a Member State — Survivor’s pension — Reduction in the amount paid by another Member State)

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