Case C-275/12: Judgment of the Court (Third Chamber) of 24 October 2013 (request for a preliminary ruling from the Verwaltungsgericht Hannover — Germany) — Samantha Elrick v Bezirksregierung Köln (Citizenship of the Union — Articles 20 TFEU and 21 TFEU — Right of free movement and residence — National of a Member State — Studies pursued in another Member State — Education or training grant — Conditions — Duration of course greater than or equal to two years — Obtaining a vocational qualification)