Ozerov, A.; Krivosheina, M.

A Review of the Genera Cleigastra Macquart, Gonarcticus Becker, Gonatherus Rondani, Hexamitocera Becker, Nanna Strobl, Orthacheta Becker and Spathephilus Becker (Diptera, Scathophagidae) of Russia

. Zootaxa 2015, 4012, 201–257.