@book{Wilts-1999,
  address    = {Husum},
  author     = {Wilts, Ommo},
  publisher  = {Mattiesen},
  title      = {Üüs Sölring Liirbok},
  year       = {1999},
  iso_code   = {frr},
  olac_field = {general_linguistics; typology; semantics; syntax},
  wals_code  = {fno}
}