?url_ver=Z39.88-2004&rft_id=PQ+ETD%3A602526&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Cotton&rft.au=Cotton%2C+S.&rft.aufirst=S.&rft.date=2004&rft.tpages=266&rft.title=The+signalling+function+of+eyespan+in+stalk-eyed+flies+(Diptera%3A+Diopsidae).&rft.inst=University+of+London&rft.degree=Doctoral