You may also wish to search for items by Hwang, S. and Hwang.
Only one matching reference was found.
Hwang, S.H.; DesMarteau, D.D.; Beyerlein, A.L.; Smith, N.D.; Joyner, P., The heat capacity of fluorinated propane and butane derivatives by differential scanning calorimetry, J. Therm. Anal., 1992, 38, 2515-28. [all data]