author    = "H. Liberska and T. Purev and K. Boniecka and M. Farnicka",
  title     = "Experience of aggression and taking up the roles of aggressor and victim by mongolian youth",
  pages     = "171--185",
  year      = "2014",
  booktitle = "Current psychosocial problems in traditional and novel approaches : the multiplicity of roles and difficulties experienced by human in life as determinants of well-being, ISBN: 9788380180109",
  editor    = "ed. by Hanna Liberska",
  publisher = "Wydawnictwo Uniwersytetu Kazimierza Wielkiego",
  address   = "Bydgoszcz",
  volume    = "Vol. 3",