@book{Oberweis.2007b,
  address = {Karlsruhe},
  author = {Oberweis, A. and Weinhardt, C. and Gimpel, H.},
  interhash = {b006f3965a80bc196a8a93009367ce33},
  intrahash = {a1c9e4e9791ec1b1520da7086a490206},
  isbn = {9783866440944},
  publisher = {Univ.-Verl. Karlsruhe},
  title = {eOrganisation. Service-, Prozess-, Market-Engineering. Bd. 1:  8. Internationale Tagung Wirtschaftsinformatik (WI 2007): Karlsruhe (28.02.-02.03.2007)},
  year = 2007
}

@book{Oberweis.2007,
  address = {Karlsruhe},
  author = {Oberweis, A. and Weinhardt, C. and Gimpel, H.},
  interhash = {009b9612858279072894e0c7a4880314},
  intrahash = {51f61bdbb7029c30f52ddf5fa58833f6},
  isbn = {9783866440951},
  publisher = {Univ.-Verl. Karlsruhe},
  title = {eOrganisation. Service-, Prozess-, Market-Engineering. Bd. 2:  8. Internationale Tagung Wirtschaftsinformatik (WI 2007): Karlsruhe (28.02.-02.03.2007)},
  year = 2007
}