The Influence of a Degree of Initial Material Defects on the Strain Structure Formed in the Explosive Collapsing Thick-Walled Cylinders M. Bondar, Ya. L. Lukyanov et T. TeslenkoJ. Phys. IV France, 07 C3 (1997) C3-481-C3-486DOI: https://doi.org/10.1051/jp4:1997383