1. The Hypercircle in Mathematical Physics;Synge,1957
2. Stress Analysis,1965
3. Upper and lower bounds in matrix structural analysis;De Veubeke,1964
4. Bending and stretching of plates, special models for upper and lower bounds;De Veubeke,1965
5. Upper and lower bounds to structural deformations by dual analysis in finite elements;Sander;AFFDL-TR-66-199, AD812876,1967