A High-Resolution VLT/FLAMES Study of Individual Stars in the Centre of the Fornax Dwarf Spheroidal Galaxy, A&A 523, A17 (2010) Astronomy DOI: 10.1051/0004-6361/200913413 & c ESO 2010 AstrophysicsA high-resolution VLT/FLAMES study of individual stars in the centre of the Fornax dwarf spheroidal galaxy