http://www.europarl.europa.eu/RegData/etudes/IDAN/2017/599352/EPRS_IDA%282017%29599352_EN.pdf
http://www.consilium.europa.eu//media/32504/xt21004-ad01re02en18.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/621848/60093_Cm9464_NSS_SDR_Web.pdf
http://www.imf.org/en/News/Articles/2017/05/12/ms051217-ireland-staff-concluding-statement-of-the-2017-article-iv-consultation