Pashaei Rad, S., Amiri Moghaddam, F., Sadeghi Namaghi, H., & Sheidai, M. "Determination of the Viodiversity ans Fauna of Hoverflies (Dip:Syrphidae) in Bardskan (Khorasan-e-Razavi province)" .e101243 , Advanced Environmental Sciences, 2, 5, 2004, e101243.