@incollection{KirnerLayKinkel2008,
  author    = {Eva Kirner and Gunter Lay and Steffen Kinkel},
  title     = {The Relevance of Services for High-, Medium- and Low-tech Firms – An Empirical Analysis in German Industry},
  series = {Innovation in Low-Tech Firms and Industries},
  publisher = {Edward Elgar},
  address   = {Cheltenham},
  isbn      = {9781847208231},
  doi       = {10.4337/9781848445055.00019},
  pages     = {175 -- 193},
  year      = {2008},
  language  = {en}
}