@article{WahlWiniwarterQuirchmayr2011,
  author    = {Harald Wahl and Werner Winiwarter and Gerald Quirchmayr},
  title     = {Towards an intelligent integrated language learning environment},
  journal   = {International Journal of Pervasive Computing and Communications},
  volume    = {2011},
  number    = {Vol. 7 / No 3},
  pages     = {220 -- 239},
  year      = {2011},
}