Reference Label	Details
Humphrey 1952	G. L. Humphrey and E. G. King, J. Am. Chem. Soc. 74, 2041 (1952) Heats of Formation of Quartz and Cristobalite
Humphrey 1952a	G. L. Humphrey, S. S. Todd, J.P. Coughlin, and E. G. King, Some Thermodynamic Properties of Silicon Carbide, Bureau of Mines Report of Investigations 4888, U.S. Depart. of the Interior, July 1952