Template:Engel & Ortega-Blanco, 2008

• Engel, M.S. & Ortega-Blanco, J. 2008. The fossil crown wasp Electrostephanus petiolatus Brues in Baltic Amber (Hymenoptera, Stephanidae): designation of a neotype, revised classification, and a key to amber Stephanidae. ZooKeys 4: 55–64. DOI: 10.3897/zookeys.4.49 .  
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