1. Pian, T. H. H.: Creep Buckling of Curved Beaim Under Lateral Loading. 3rd US Congr. Appl. Mech. Proc. (1958) pp. 649–654.
2. Marguerre, K.: Neuere Festigkeitsprobleme des Ingenieurs. Berlin/Göttingen/ Heidelberg: Springer 1950, Ch. V.
3. Hoff, N. J., and V. G. Bruce: Dynamic Analysis of the Buckling of Laterally Loaded Flat Arches. VIII Int. Congr. Theor. Appl. Mech. Istanbul. J. Math. Phys. XXXII, 276–288 (1952).
4. Hoff, N. J.: Buckling and Stability. J. Roy. Aer. Soc. 58, 1–52 (1954).
5. Hult, J.: Creep Buckling of Plane Frameworks. Durand Centennial Conferen ce, Stanford University, Proc. (1960) pp. 227–246.