Determination of the top quark mass circa 2013: methods, subtleties, perspectives Aurelio Juste, Sonny Mantry, Alexander Mitov, Alexander Penin, Peter Skands, Erich Varnes, Marcel Vos and Stephen Wimpenny Eur. Phys. J. C, 74 10 (2014) 3119 Published online: 29 October 2014 DOI: 10.1140/epjc/s10052-014-3119-5