@book{JanzEblingGoeggerleetal.2005,
  author    = {Norbert Janz and G{\"u}nther Ebling and J. G{\"o}ggerle and Georg Licht},
  title     = {The Longitudinal Aspect of Innovation Surveys / G. Ebling, J. G{\"o}ggerle, N. Janz, G. Licht und H. Stahl},
  year      = {2005},
}