1. Ben-Eli, M. (2015). Sustainability: Definition and five core principles. http://www.sustainabilitylabs.org/assets/.
2. Braat, L. C., & Van Lierop, W. F. J. (1986). Economic-ecological modelling: An introduction to methods and applications. Ecological Modelling, 31(1986), 33–44.
3. Brundtland Report. (1987). 1983 World Commission on Environment and Development. www.sustainabledevelopment2015.org/…/our-common-future.
4. Gavrikova, E., Volkova, I., & Burda, Y. (2020). Strategic aspects of asset management: An overview of current research. Sustainability, 12, 5955. https://doi.org/10.3390/su12155955.
5. Götze, U., Northcott, D., & Schuster, P. (2008). Investment appraisal: Methods and models. Springer.