1. AlJaberi, O.A., Hussain, M., Drake, P.R.: A framework for measuring sustainability in healthcare systems. Int. J. Healthc. Manag. 13(4), 276–285 (2020)
2. Elkington, J., Rowlands, I.H.: Cannibals with forks: the triple bottom line of 21st century business. Altern. J. 25(4), 42 (1999)
3. Eurostat: Sustainable Development in the European Union: 2011 Monitoring Report of the EU Sustainable Development Strategy. Publications office of the European Union (2011)
4. Fiksel, J.R., Eason, T., Frederickson, H.: A framework for sustainability indicators at EPA (2012)
5. Jameton, A., McGuire, C.: Toward sustainable health-care services: principles, challenges, and a process. Int. J. Sustain. High. Educ. 3(2), 113–127 (2002)