"Opinion Poll"(PDF). Dagbladet Børsen (in Danish). Greens Analyseinstitut. October 2009. Archived(PDF) from the original on 19 July 2011. Retrieved 28 March 2015.
EU Information Centre, ed. (25 November 2022). "The Danish opt-outs from EU cooperation". EU Information Centre. The Danish Parliament. Archived from the original on 5 January 2024. Retrieved 10 March 2024.
EU Information Centre, ed. (25 November 2022). "The Danish opt-outs from EU cooperation". EU Information Centre. The Danish Parliament. Archived from the original on 5 January 2024. Retrieved 10 March 2024.
"Opinion Poll"(PDF). Dagbladet Børsen (in Danish). Greens Analyseinstitut. October 2009. Archived(PDF) from the original on 19 July 2011. Retrieved 28 March 2015.