https://www.tni.org/files/publication-downloads/marketforces-report-tni-statewatch.pdf
http://www.ecb.europa.eu/pub/pdf/other/ebart201703_01.en.pdf
https://www.socialeurope.eu/taking-aim-at-sellers-inflation
https://www.ifri.org/sites/default/files/atoms/files/pe-3-2022_stark.pdf