Instability of continuous systems : Symposium Herrenalb (Germany) September 8-12, 1969 / Ed.: H. Leipholz. IUTAM-Symposium on Instability of Continuous Systems, Herrenalb, Ger., 1969. Leipholz, H. H. E. (Horst H. E.), 1919-, ed. International Union of Theoretical and Applied Mechanics. Continuum mechanics Congresses. Stability Congresses. QA808.2 .I22 1969b 531/.3 620.1 LEI New York : Springer-Verlag, 1971. 1971. 1971 Text xii, 422 p. : eng