https://www.smmt.co.uk/wp-content/uploads/sites/2/SMMT-Sustainability-Report-2018.pdf
https://www.economiesuisse.ch/de/artikel/die-versorgungssituation-der-schweiz-bleibt-kritisch?utm_medium=email&utm_source=mailXpert&utm_campaign=Newsletter&utm_content=Der%20neue%20Swiss%20Code%20und%20was%20er%20in%20der%20Praxis%20bedeutet
https://ukandeu.ac.uk/the-debt-brake-and-germanys-international-competitiveness/
https://ecipe.org/wp-content/uploads/2024/11/ECI_24_PolicyBrief_22-2024_LY04.pdf