@article{Tertel:2015,
  author  = "E. Tertel and P. Kuryło and W. Papacz",
  title   = "The stress state in the three-layer open conical shell during stability loss",
  journal = "Acta Mechanica Slovaca",
  volume  = "Vol. 19",
  number  = "no. 3",
  pages   = "38--44",
  year    = "2015",
}