@misc{KlumpMcAdamWillman2014,
  author    = {Rainer Klump and Peter McAdam and Alpo Willman},
  title     = {Factor substitution and factor augmenting technical progress in the US : a normalized supply-side system approach},
  booktitle = {Europ{\"a}ische Zentralbank: Working paper series ; No. 367},
  issn      = {1561-0810},
  url       = {http://ssrn.com/abstract=533127},
  institution = {Wirtschaftswissenschaften},
  series    = {European Central Bank: Working paper series},
  number    = {367},
  type      = {workingpaper},
  pages     = {61},
  year        = {2014},
}