1. “The Dyadic Gage”;WILLIAMS;Proc. Soc. Exptl. Stress Anal.,1944
2. WILLIAMS, SIDNEY B., (to Curtis-Wright Corporation), “Strain Responsive Gauge” U.S. Patent 2,592,223, April 8, 1952.
3. “Practical Reduction Formulas for Use on Bonded Wire Strain Gages in Two-Dimensional Stress Fields”;BAUMBERGER;Proc. Soc. Exptl. Stress Anal.,1944