«Discrimination in the European Union», Special Eurobarometer, 493 (European Union: European Commission), 2019, consultado el 8 de noviembre de 2019. The question asked was "Do you consider yourself to be...?" With a card showing: Catholic, Orthodox Christian, Protestant, Other Christian, Jewish, Muslim - Shia, Muslim - Sunni, Other Muslim, Sikh, Buddhist, Hindu, Atheist, Non believer/Agnostic and Other. Also space was given for Refusal (SPONTANEOUS) and Don't Know. Jewish, Muslim - Shia, Sikh, Buddhist and Hindu did not reach the 1% threshold.
Merke, Federico. «Reflexiones sobre la Seguridad y la Identidad en Europa». Universidad Nacional Tres de Febrero: 18-19.|fechaacceso= requiere |url= (ayuda)[1]
