@book{UBHD-65315785,
  author={Frondel, Manuel},
  title={Empirical and theoretical contributions to substitution issues},
  year={2000},
  pages={II, 129 [Bl.]},
  language={eng},
  school={Heidelberg, Univ., Diss., 2001},
  keywords={Faktorsubstitution / Translog-Kostenfunktion / Substitutionselastizit{\"a}t},
  library={UB [Signatur: 2001 Q 38]},
}
@book{UBHD-65365516,
  author={Frondel, Manuel},
  title={Empirical and theoretical contributions to substitution issues},
  year={2001},
  pages={Online-Ressource},
  language={eng},
  school={Heidelberg, Univ., Diss., 2001},
  doi={10.11588/heidok.00001766},
  keywords={Faktorsubstitution / Translog-Kostenfunktion / Substitutionselastizit{\"a}t},
  url={http://www.ub.uni-heidelberg.de/archiv/1766},
  library={UB},
}