L. Toma, A. Stott, C. Revoredo-Giha, and B. Kupiec-Teahan. Appetite, 58 (2):
597-607(2012)First published online: November 19, 2011, http://dx.doi.org/10.1016/j.appet.2011.11.015. (Eurobarometer).
J. Moncrieffe. The power of labelling. How people are categorized and why it matters, chapter Introduction. Labelling, power and accountability: how and why 'our'
categories matter, Earthscan, London, (2007)