@article{Bigge2009,
  author    = {Gerd Bigge},
  title     = {Verwaltungsverfahren: S{\"a}umniszuschlag / Nachversicherungsbeitr{\"a}ge},
  series   = {SGb (Die Sozialgerichtsbarkeit)},
  volume    = {56},
  number    = {4},
  publisher = {Erich Schmidt Verlag},
  address   = {Berlin},
  issn      = {0943-1462},
  doi       = {10.37307/j.1864-8029.2009.04.10},
  pages     = {231 -- 239},
  year      = {2009},
  language  = {de}
}