@article{Tertel:2011,
  author  = "E. Tertel and J. Cyganiuk and P. Kuryło",
  title   = "Buckling of elastic-plastic sandwich conical shells - theoretical studies",
  journal = "International Journal of Applied Mechanics and Engineering",
  volume  = "Vol. 16",
  number  = "no 1",
  pages   = "129--140",
  year    = "2011",
}