@article{ThiemeHeller2000,
  author    = {Thieme, Siegfried and Heller, Wilfried},
  title     = {Transformation in der Landwirtschaft und im l{\"a}ndlichen Raum der ostdeutschen Bundesl{\"a}nder},
  year      = {2000},
  language  = {de}
}
@misc{HellerSaupeFelgentreffetal.2006,
  author    = {Heller, Wilfried and Saupe, Gabriele and Felgentreff, Carsten and Lindner, Waltraud},
  title     = {Entrepreneurial initiative and regional development: supporting policies in the land of Brandenburg (Eastern Germany)},
  year      = {2006},
  language  = {en}
}
@article{HellerIanos2001,
  author    = {Heller, Wilfried and Ianos, I.},
  title     = {Wirtschaftsr{\"a}umliche Entwicklung in Rum{\"a}nien nach der Wende},
  year      = {2001},
  language  = {de}
}
@article{HellerFelgentreffLindneretal.2001,
  author    = {Heller, Wilfried and Felgentreff, Carsten and Lindner, Waltraud and Saupe, Gabriele},
  title     = {Entrepreneurial initiative and regional development : supporting policies in the Land of Brandenburg},
  year      = {2001},
  language  = {en}
}
@article{HellerFelgentreff2000,
  author    = {Heller, Wilfried and Felgentreff, Carsten},
  title     = {On the study of socio-economic transformation and migration in rural areas of post-socialist countries},
  year      = {2000},
  language  = {en}
}
@article{HellerDokaBerxholietal.2004,
  author    = {Heller, Wilfried and Doka, Dhimiter and B{\"e}rxholi, A. and Felgentreff, Carsten},
  title     = {Internal population redistribution in post-socialist Albania},
  issn      = {0721-2887},
  year      = {2004},
  language  = {en}
}
@article{HellerBeckerBelinaetal.2007,
  author    = {Heller, Wilfried and Becker, J{\"o}rg and Belina, Bernd and Lindner, Waltraud},
  title     = {Ethnizit{\"a}t - Globalisierung - Transformation - S{\"u}dosteuropa},
  year      = {2007},
  language  = {de}
}
@article{Heller2007,
  author    = {Heller, Wilfried},
  title     = {Vorwort},
  isbn      = {978-3-939469-76-6},
  year      = {2007},
  language  = {de}
}
@misc{Heller2007,
  author    = {Heller, Wilfried},
  title     = {Wolf, J., Entwicklung der ethnischen Struktur des Banats 1890 - 1992; Berlin, Borntraeger, 1999},
  year      = {2007},
  language  = {de}
}
@article{Heller2007,
  author    = {Heller, Wilfried},
  title     = {Die demographische Lage Deutschlands : ein {\"U}berblick},
  year      = {2007},
  language  = {de}
}