V. Hadavi and  J. Zamani and  R. Hosseini,  The Empirical Survey on the Effect of Using Media in Explosive Forming of Tubular Shells.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2009, vol. 36(12). 644 - 649
    [viewed 22 April 2021]. Available from: https://publications.waset.org/pdf/6407.