@phdthesis{Lederer2004,
  author    = {Lederer, Markus},
  title     = {Paul, T. V., (Hrsg.), The Nation-State in Question; Princeton, Univ. Press, 2003},
  year      = {2004},
  language  = {en}
}
@phdthesis{LedererKessler2008,
  author    = {Lederer, Markus and Kessler, Oliver},
  title     = {Weber, S., (Hrsg.) Globalization and the European Political Economy; New York, Univ., 2001},
  year      = {2008},
  language  = {en}
}