http://www.theglobalipcenter.com/wp-content/uploads/2018/02/GIPC_IP_Index_2018.pdf
https://www.bertelsmann-stiftung.de/fileadmin/files/BSt/Publikationen/GrauePublikationen/WKIO_2020_final.pdf?utm_source=POLITICO.EU&utm_campaign=15a7cc1e87-EMAIL_CAMPAIGN_2020_04_08_08_59&utm_medium=email&utm_term=0_10959edeb5-15a7cc1e87-190380769
https://blogs.lse.ac.uk/businessreview/2024/06/17/how-to-restructure-the-international-tax-regime/
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/711110/OTS_savings_paper_May_18.pdf