Scott E. Hudson, Andrey K. Yeatts. Smoothly integrating rule-based techniques into a direct manipulation interface builder. In James R. Rhyne, editor, Proceedings of the 4th Annual ACM Symposium on User Interface Software and Technology, UIST 1991, Hilton Head, South Carolina, USA, November 11-13, 1991. pages 145-153, ACM, 1991. [doi]
Abstract is missing.