@incollection{DeWaC07,
  address = {Wiesbaden},
  author = {Decker, R. and Wagner, R.},
  booktitle = {{H}andw\"orterbuch der {M}arktforschung},
  editor = {Hermann, A. and Herrmann, A. and Klarmann, M.},
  interhash = {5e765e86086e075b5b832bf1f59103d1},
  intrahash = {761bd8cca17efc6e7ca37900b216082f},
  pages = {53 - 79},
  publisher = {Gabler},
  title = {{F}ehlende {W}erte: {U}rsachen, {K}onsequenzen und {B}ehandlung},
  url = {http://books.google.de/books?hl=de&lr=&id=K-vbr9_p-ncC&oi=fnd&pg=PA53&dq=wagner+Decker&ots=LLB2iTbWzq&sig=sSEuv7mGBGvWQHRO7RAbYl63F2g#PPA53,M1},
  year = 2007
}