https://www.imf.org/en/Publications/fandd/issues/2022/09/Bullet-train-Adrian-Mancini-Griffoli
http://visegradinsight.eu/app/uploads/2019/11/EaP-2030-Trends.pdf
https://21stcenturywire.com/wp-content/uploads/2022/03/SenateReporten.pdf
https://www.ips-journal.eu/topics/economy-and-ecology/taking-the-fields-to-the-streets-7288/