@article{39431, author = {J Calm and David Didion}, title = {Research and Development of Heat Pumps Using Nonazeotropic Mixture Refrigerants}, year = {1985}, number = {1}, month = {1985-06-01}, publisher = {ASHRAE Technical Data Bulletin 54}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=910740}, language = {en}, }