@article{oai:soar-ir.repo.nii.ac.jp:00012945,
 author = {YAMAGUCHI,  Tsutomu},
 journal = {信州大学工学部紀要},
 month = {Dec},
 note = {Article, 信州大学工学部紀要 35: 11-18 (1973)},
 pages = {11--18},
 title = {A New Method for Increasing COP of Heat Pump Cycle},
 volume = {35},
 year = {1973}
}