@book{winkler_udmurtische_2011,
  address   = {Wiesbaden},
  author    = {Winkler, Eberhard},
  number    = {81},
  publisher = {Harrassowitz},
  series    = {Veröffentlichungen der Societas Uralo-Altaica},
  title     = {Udmurtische Grammatik},
  year      = {2011}
}