1. Wasiutynski, Z. & Brandt, A.: Appl. Mech. Rev. 16, 344–350 (1963).
2. Sheu, C.Y. & Prager, W.: Appl. Mech. Rev. 21, 985–992 (1968).
3. Prager, W.: AGARD-Rept. No. 589 (1971).
4. Niordson, F.I. & Pedersen, P.: Proc. 13th Int. Cong. Th. Appl. Mech. Moscow, 264–278, Springer-Verlag (1973).
5. Rozvany, G.I.N. & Mröz, Z.: Appl. Mech. Rev. 10, 1461–1470 (1977).