eurosai 66 Information on EU accounts for all Joint Undertakings except the ECSEL (Electronic components and Systems) Joint Undertaking. At the same time, the ECA also issued a summary of the results from the annual audit of the European research Joint Undertakings. Other ECA products include review-based publications such as landscape reviews, briefing papers, rapid case reviews and background papers. » Landscape reviews are descriptive and analytical documents on complex, largescale policy areas or management issues, in which the ECA sets out its accumulated experience and knowledge on the selected topic, often from a cross-cutting perspective. In 2018, the ECA published the following landscape reviews: -- Putting EU law into practice: The European Commission’s oversight responsibilities under Article 17(1) of the Treaty on European Union. -- Towards a successful transport sector in the EU: challenges to be addressed. » Briefing papers are similar in nature to landscape reviews (descriptive and analytical documents of policy or management), but address more focused topics. During 2018, the ECA published the following briefing papers: -- The Commission’s proposal for the 2021- 2027 Multiannual Financial Framework. -- Simplification in post-2020 delivery of Cohesion Policy. -- The integration of migrants from outside the EU. -- A contribution to simplification of EU. research programme beyond Horizon 2020. -- Future of the CAP. -- Future of EU finances: reforming how the EU budget operates. » Rapid case reviews present and establish facts surrounding very specific issues or problems, including, if necessary, an analysis to help understand those facts. During 2018, the ECA published the following rapid case review: -- VAT reimbursement in Cohesion - an error- prone and sub-optimal use of EU funds. » Background papers provide information based on preparatory work undertaken before the start of an on-going audit task. They are intended as a source of information for those interested in the policy and/or programme being audited. During 2018, the ECA published background papers on: -- Animal welfare in the EU. -- Food safety in the EU. -- Electricity production from wind and solar photovoltaic power in the EU. -- Organic food in the EU. -- European Insurance and Occupational Pensions Authority’s (EIOPA) contribution to the supervision of and financial stability in the EU's insurance sector. -- Facility for Refugees in Turkey. -- Cross-border healthcare in the EU. -- Consulting the public when preparing EU law. -- Desertification in the EU. -- Collection of VAT and customs duties on cross-border e-commerce. -- Fund for European Aid to the Most Deprived. -- Enforcement of EU competition policy. » Finally, the ECA’s annual activity report for 2017 provides an overview of the key results and achievements during the year as well as the main developments in its audit environment and internal organisation. The ECA’s reports, opinions and other public documents can be found on http://www.eca.europa.eu.