@article{Bacia:2015,
  author  = "M. Bacia and W. Lamperska and J. Masajada and S. Drobczyński and M. Marę",
  title   = "Polygonal micro-whirpools induced in ferrofluids",
  journal = "Optica Applicata",
  volume  = "Vol. 45",
  number  = "no. 3",
  pages   = "309--316",
  year    = "2015",
}