@article{KerkaKriegesmannSchwering2009,
  author    = {Kerka, Friedrich and Kriegesmann, Bernd and Schwering, Markus G.},
  title     = {Evaluating innovation ideas: a comprehensive approach to New Product Development},
  series = {INT. J. TECHNOLOGY INTELLIGENCE AND PLANNING, Vol. 5, No. 2},
  journal   = {INT. J. TECHNOLOGY INTELLIGENCE AND PLANNING, Vol. 5, No. 2},
  pages     = {118 -- 137},
  year      = {2009},
  language  = {mul}
}
@incollection{KerkaSchweringStriewe2009,
  author    = {Kerka, Friedrich and Schwering, Markus G. and Striewe, Frank},
  title     = {Innovationsorientierte Marktforschung},
  series = {Gerybadze, Alexander; H{\"u}nningshausen, Lars; Barske, Heiko; Sommerlatte, T. (Hrsg.): Innovationsmanagement - Produkte, Prozesse, Dienstleistungen},
  booktitle = {Gerybadze, Alexander; H{\"u}nningshausen, Lars; Barske, Heiko; Sommerlatte, T. (Hrsg.): Innovationsmanagement - Produkte, Prozesse, Dienstleistungen},
  address   = {D{\"u}sseldorf},
  year      = {2009},
  language  = {de}
}
@article{KerkaSchweringStriewe2009,
  author    = {Kerka, Friedrich and Schwering, Markus G. and Striewe, Frank},
  title     = {Innovationsorientierte Marktforschung},
  series = {Gerybadze, Alexander; H{\"u}nningshausen, Lars; Barske, Heiko; Sommerlatte, T. (Hrsg.): Innovationsmanagement - Produkte, Prozesse, Dienstleistungen, D{\"u}sseldorf 2009},
  journal   = {Gerybadze, Alexander; H{\"u}nningshausen, Lars; Barske, Heiko; Sommerlatte, T. (Hrsg.): Innovationsmanagement - Produkte, Prozesse, Dienstleistungen, D{\"u}sseldorf 2009},
  year      = {2009},
  language  = {mul}
}