Dell' Isola, F., and L. Rosa. 1996. “Outlooks in Saint Venant Theory Part II. Torsional Rigidity, Shear-Stress ‘and All That’ in the Torsion of Cylinders With Section of Variable Thickness”. Archives of Mechanics 48 (4): 753-63. https://doi.org/10.24423/aom.1365.