1. Solution of problems of elasticity by the framework method;Hrennikoff;J. Appl. Mech.,1941
2. Analysis of Cylindrical Shells by the Finite Element Method;Hrennikoff,1966
3. The Finite Element Method in Plane Stress Analysis;Clough,1966
4. Grid-framework method for plates in flexure;Yettram,1965
5. Plane-framework methods for plates in extension;Yettram,1966