@article{Michalski:2005,
  author  = "D. Michalski and E. Walicki and A. Walicka and P. Jurczak",
  title   = "Pressure drops in the flow through an annular die of a polymer modelled by a Herschel-Bulkley fluid",
  journal = "International Journal of Applied Mechanics and Engineering",
  volume  = "Vol. 10",
  number  = "Special issue",
  pages   = "39--46",
  year    = "2005",
}