TY - BOOK AU - Becker, E AU - Mikhailov, G.K., Ed. TI - Theoretical and applied mechanics; Proceedings of the Thirteenth international congress of theoretical and applied mechanics held at Moscow university between <21=twentyone> - <26=twentysix> August <1972=one thousand nine hundred seventytwo> PY - 1973/// CY - Berlin PB - Springer-Verlag ER -