@InBook{General_user_modeling_a_facility_to_support_intelligent_interaction, author = "Robert Kass and Tim Finin", editor = "Joseph W. Sullivan and Sherman W. Tyler", title = "{General user modeling: a facility to support intelligent interaction}", month = "May", year = "1991", note = "<a href="https://doi.org/10.1145/107215">10.1145/107215</a>", pages = "111–128", booktitle = "Intelligent User Interfaces", publisher = "Addison-Wesley", }