@misc{HackethalZdantchouk2004,
  author    = {Andreas Hackethal and Alexandre Zdantchouk},
  title     = {Share buy-backs in Germany overreaction to weak signals? : [Version April 2004]},
  booktitle = {Universit{\"a}t Frankfurt am Main. Fachbereich Wirtschaftswissenschaften: [Working paper series / Finance and accounting] Working paper series, Finance \& Accounting ; No. 128},
  number    = {Version April 2004},
  institution = {Wirtschaftswissenschaften},
  series    = {Working paper series / Johann-Wolfgang-Goethe-Universit{\"a}t Frankfurt am Main, Fachbereich Wirtschaftswissenschaften : Finance \& Accounting},
  number    = {128},
  type      = {workingpaper},
  year        = {2004},
}