TY - RPRT TI - DYNAMIC DEFORMATION AND BUCKLING OF SPHERICAL SHELLS UNDER BLAST AND IMPACT LOADING AU - Balmer, H. A. AU - Pian, T. H. H. AU - Witmer, E. A. PY - 1962 UR - https://ntrs.nasa.gov/citations/19630000978 ID - 19630000978 ER -