Case C-522/10: Judgment of the Court (Third Chamber) of 19 July 2012 (reference for a preliminary ruling from the Sozialgericht Würzburg — Germany) — Doris Reichel-Albert v Deutsche Rentenversicherung Nordbayern (Social security for migrant workers — Regulation (EC) No 987/2009 — Article 44(2) — Examination of entitlement to old-age pension — Taking into account of child-raising periods completed in another Member State — Applicability — Article 21 TFEU — Free movement of citizens)