https://ec.europa.eu/commission/sites/beta-political/files/seminar-20200114-lpf_en.pdf
https://www.ips-journal.eu/index.php?id=340&L=0&tx_news_pi1[news]=3894&tx_news_pi1[controller]=News&tx_news_pi1[action]=detail&utm_source=newsletter&utm_medium=email&utm_campaign=en_725_20191126&cHash=ac2f2b518fa84d486b1e9d1776dad3dd
https://www.aldeparty.eu/charanzov_the_single_market_is_still_not_complete?utm_campaign=alde_party_co_president_witnes&utm_medium=email&utm_source=aldeparty
https://onlinelibrary.wiley.com/doi/10.1111/jcms.13415