Development of Sky-source Heat Pump SystemMasaki Shioya, Taizo Shimo, Yoshiro Shiba, Ichiro Masaki, Ryozo Ooka, Hideki Tanaka, Makiko Ukai, Chisato Tsuchida, Hideki Yuzawa, Takesi Kondo and Ryuta TsurumiE3S Web of Conf., 396 (2023) 03033DOI: https://doi.org/10.1051/e3sconf/202339603033
