Template:Bickel, 2009b
- Bickel, D. 2009. Why Hilara is not amusing: the problem of open-ended taxa and the limits of taxonomic knowledge. pp. 279–301 in: Pape, T., Bickel, D. & Meier, R. (eds.) 2009. Diptera diversity: status, challenges and tools. Koninklijke Brill NV. ISBN 978-90-04-14897-0 DOI: 10.1163/ej.9789004148970.I-459.46
