@book{318390,
  address        = {Cuxhaven},
  author         = {Siebs, Theodor},
  pages          = {319},
  publisher      = {Cuxhaven/Helgoland},
  title          = {Helgoland und seine Sprache},
  year           = {1909},
  citekeys       = {langsci331:siebs1909},
  hhtype         = {grammar_sketch},
  inlg           = {German [deu]},
  isreferencedby = {langsci331},
  lgcode         = {Helgoland = Northern Frisian [frr]},
  macro_area     = {Eurasia},
  oclc           = {163082008},
  src            = {hh, langsci}
}