@article{Gabryś:2003,
  author  = "B. Gabryś and W. Celary and G. Sobota",
  title   = "Apoidea (Hymenoptera) caught in yellow traps during spring and summer in agricultural landscape near Wrocław (Lower Silesia, Poland)",
  journal = "Fragmenta Faunistica",
  volume  = "Vol. 46",
  pages   = "171--181",
  year    = "2003",
}