@book{JanzEblingGottschalketal.2005,
  author    = {Norbert Janz and G{\"u}nther Ebling and Sandra Gottschalk and Bettina Peters},
  title     = {Innovation Activities in the German Economy: Report on indicators from the Innovation Survey 2001 (english translation) / Janz, N., G. Ebling, S. Gottschalk, B. Peters und T. Schmidt},
  year      = {2005},
}