unicode issue with biblio?

[Edwin Leuven]

the insert citation dialog crashes here with attached bib entry

hints anyone?

thanks, ed.

@ARTICLE{AcemogluPischke2000,
  author = {Acemoglu, Daron and Pischke, Jörn-Steffen},
  title = {Certification of training and training outcomes},
  journal = {European Economic Review},
  year = {2000},
  volume = {44},
  pages = {917-927},
  number = {4-6}
}