@incollection{Gebhardt2014,
  author    = {Gebhardt, Dirk},
  title     = {The dry heart of Brazil},
  series = {Kolga Tbilisi photo : photo contest - exhibition - education - communication},
  publisher = {Kolga Tbilisi photo},
  address   = {Tbilisi},
  pages     = {6},
  year      = {2014},
  language  = {en}
}
@incollection{Gebhardt2014,
  author    = {Gebhardt, Dirk},
  title     = {Robert Bosch},
  series = {Anstifter des Wandels : 50 Jahre Robert Bosch Stiftung},
  publisher = {Silberburg-Verlag},
  address   = {T{\"u}bingen},
  pages     = {6},
  year      = {2014},
  language  = {de}
}
@incollection{Gebhardt2015,
  author    = {Gebhardt, Dirk},
  title     = {Inszenierung von "Protest" durch Fotografie},
  series = {Inszenierung und Politik : Szenografie im sozialen Feld},
  publisher = {Transcript},
  address   = {Bielefeld},
  pages     = {10},
  year      = {2015},
  language  = {de}
}
@book{GebhardtKoldehoffKoldehoff2013,
  author    = {Gebhardt, Dirk and Koldehoff, Nora and Koldehoff, Stefan},
  title     = {Unter freiem Himmel},
  publisher = {Nimbus},
  address   = {W{\"a}denswil},
  isbn      = {978 3 907142 90 5},
  pages     = {76},
  year      = {2013},
  language  = {de}
}