Thermal Behavior of Piggyback Laid District Heating and District Cooling Pipes. CONECT. International Scientific Conference of Environmental and Climate Technologies, Riga, Latvia, p. 23–24, 2025. DOI: 10.7250/CONECT.2025.006. Disponível em: https://ect-journals.rtu.lv/conect/article/view/CONECT.2025.006.. Acesso em: 5 mar. 2026.