@book{Donner-1955,
  address    = {Helsinki},
  author     = {Donner, K.},
  publisher  = {Suomalais-Ugrilainen Seura},
  title      = {Ketica},
  year       = {1955},
  iso_code   = {ket},
  olac_field = {typology; syntax; general_linguistics},
  wals_code  = {ket}
}