TY - JOUR AU - Calm, J AU - Didion, David C2 - ASHRAE Technical Data Bulletin 54 DA - 1985-06-01 LA - en M1 - 1 PB - ASHRAE Technical Data Bulletin 54 PY - 1985 TI - Research and Development of Heat Pumps Using Nonazeotropic Mixture Refrigerants UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=910740 ER -