@book{Janas-1976,
  address    = {Bautzen},
  author     = {Janas, Petr},
  publisher  = {Domowina},
  title      = {Niedersorbische Grammatik},
  year       = {1976},
  iso_code   = {hsb; dsb},
  olac_field = {general_linguistics; phonetics; syntax; phonology; typology; semantics},
  wals_code  = {srl; srb}
}