Application of G. Lame’s and J. Gielis’ formulas for description of shells superplastic formingAleksandr Anishchenko, Volodymyr Kukhar, Viktor Artiukh and Olga ArkhipovaMATEC Web Conf., 239 (2018) 06007DOI: https://doi.org/10.1051/matecconf/201823906007