Makasis, Nikolas, Asal Bidarmaghz, Wenbin Fei, and Guillermo Andres Narsilio. “Cooling Underground Substations Worldwide Using Heat Pumps”. Symposium on Energy Geotechnics 2023 (September 29, 2023): 1–2. Accessed July 3, 2024. https://proceedings.open.tudelft.nl/seg23/article/view/528.