ØSTERGAARD, P. A.; LUND, H.; MATHIESEN, B. V. Developments in 4th generation district heating. International Journal of Sustainable Energy Planning and Management, Aalborg, Denmark, v. 20, 2019. DOI: 10.5278/ijsepm.2019.20.1. Disponível em: https://journals.aau.dk/index.php/sepm/article/view/3144. Acesso em: 7 may. 2024.