https://wiiw.ac.at/regulatory-convergence-within-technical-barriers-to-trade-dlp-6630.pdf
https://www.wto.org/english/res_e/reser_e/ersd201704_e.pdf
https://ecipe.org/wp-content/uploads/2021/09/ECI_21_PolicyBrief_12_2021_LY02.pdf
https://www.bruegel.org/sites/default/files/2022-11/WP%2018.pdf