@article{Sobota:2009,
author
=
"G.Sobota and B.Gabryś",
title
=
"Hoverflies (Diptera, Syrphidae) on selected field crops",
journal
=
"Aphids and other hemopterous insects : University of Warmia and Masuria ; Olsztyn",
volume
=
"Vol. 8",
pages
=
"403--410",
year
=
"2001",
}