1. On the communication of the structure of doubly refracting crystals to glass, muriate of soda, fluor spar, and other substances, by mechanical compression and dilatation;Brewster;Phil. Trans. R. Soc.,1816
2. Optical control methods applied to prestressing;Roberts;Civ. Engng publ. Wks Rev.,1963
3. Photoelastic Instrumentation in Civil Engineering Structures;Hawkes,1965
4. The Theory and Development of Load Cells incorporating Photoelastic Glass Disc Transducers;Hooper,1968
5. Photoelastic load cells for civil engineering structures;Hawkes;Civ. Engng publ. Wks Rev.,1969