@book{Winkler-2001,
  address    = {München},
  author     = {Winkler, Eberhard},
  publisher  = {Lincom Europa},
  title      = {Udmurt},
  year       = {2001},
  iso_code   = {udm},
  olac_field = {typology; general_linguistics; syntax; semantics},
  wals_code  = {udm}
}