@Article{The_Integrality_of_Speech_in_Multimodal_Interfaces,
  author = "Mike  Grasso and David  Ebert and Tim  Finin",
  title = "{The Integrality of Speech in Multimodal Interfaces}",
  month = "November",
  year = "1998",
  pages = "303-325",
  number = "5",
  volume = "4",
  journal = "ACM Transactions on Computer-Human Interaction",
}