1. H. Conrad, I. Ahmed, U.S. Army Research Office Workshop (Grant No. DAAL03-89G-0032) High Intensity Electro-Magnetic and Ultrasonic Effects on Inorganic Materials Behavior and Processing, North Carolina State University, Raleigh, NC, July 17–18, 1989.
2. Cahn’s Column, Materials Today 2 (1) (1999) 12.