1. “Relations Between Specific Volume, Voids, and Size Composition in Systems of Broken Solids of Mixed Sizes,”;Fumas;U.S. Bur. Mines Rep. Invest.,1928
2. Packing of Particles;Westman;J. Am. Ceram. Soc.,1930
3. Mechanical Packing of Spherical Particles;McGeary;J. Am. Ceram. Soc.,1961
4. “Inhomogeneity-Packing Density Relations in Binary Powders”;Messing;J. Am. Ceram. Soc.,1978
5. M. J. O'Hara I. B. Cutler “Sintering Kinetics of Binary Mixtures of Alumina Powders.” Proc. Brir. Ceram. Soc. 1969 145 54