@book{Addison2000,
  author    = {Addison, John T.},
  title     = {Is community social policy beneficial, irrelevant, or harmful to the labor market performance of the european union?},
  series = {Diskussionsbeitrag / Europ{\"a}isches Institut f{\"u}r internationale Wirtschaftsbeziehungen, Potsdam},
  volume    = {76},
  journal   = {Diskussionsbeitrag / Europ{\"a}isches Institut f{\"u}r internationale Wirtschaftsbeziehungen, Potsdam},
  publisher = {Univ.},
  address   = {Potsdam},
  issn      = {1430-5445},
  pages     = {15 S.},
  year      = {2000},
  language  = {en}
}
@book{Addison2000,
  author    = {Addison, John T.},
  title     = {Is community social policy beneficial, irrelevant, or harmful to the labor market performance of the european union?},
  series = {Diskussionsbeitrag / Europ{\"a}isches Institut f{\"u}r internationale Wirtschaftsbeziehungen, Potsdam},
  volume    = {90},
  journal   = {Diskussionsbeitrag / Europ{\"a}isches Institut f{\"u}r internationale Wirtschaftsbeziehungen, Potsdam},
  publisher = {Univ.},
  address   = {Potsdam},
  issn      = {1430-5445},
  pages     = {15 S.},
  year      = {2000},
  language  = {en}
}