author  = "G. Or³owski and P. Kamiński and Z. Kasprzykowski and Z. Zawada",
  title   = "Relationships between stomach content and concentrations of essential and non-essential elements in tissues of omnivorous nestling rooks Corvus frugilegus: is the size and composition of stomach content relevant?",
  journal = "Folia Zoologica",
  volume  = "Vol. 62",
  number  = "no. 4",
  pages   = "281--288",
  year    = "2013",
  note    = "podwójna afiliacja - P. Kamiński",