@book{sPoulosBoschZulu,
  author    = {Poulos, George and Bosch, Sonja E.},
  pages     = {63},
  publisher = {München: Lincom Europa},
  series    = {Languages of the world: materials},
  title     = {Zulu},
  type      = {Book},
  volume    = {50},
  year      = {1997}
}