CELSIUS: an international project providing integrated, systematic, cost-effective large-scale IoT solutions for improving energy efficiency of medium- and large-sized buildings. - Zheng Ma 002; Athila Q. Santos; Hamid Reza Shaker; Salman Yussof; Poul Møller Eriksen; Jens Hornum; Bo Nørregaard Jørgensen (Energy Inform., 2022)