@InProceedings{Rules_for_the_Implicit_Acquisition_of_Knowledge_About_the_User, author = "Robert Kass and Tim Finin", title = "{Rules for the Implicit Acquisition of Knowledge About the User}", month = "July", year = "1987", booktitle = "Proceedings of the Sixth National Conference on Artificial Intelligence (AAAI-87)", publisher = "AAAI Press", }