Implementing a Graphical Multi-user Interface Toolkit. - Douglas C. Kohlert; Kenneth J. Rodham; Dan R. Olsen (Softw. Pract. Exp., 1993)

Pictures as Input Data. - Douglas C. Kohlert; Dan R. Olsen (CHI, 1995)

Building Geometry-Based Widgets by Example. - Dan R. Olsen; Brett Ahlstrom; Douglas C. Kohlert (CHI, 1995)

NIC: interaction on the World Wide Web. - Dan R. Olsen; Kenneth J. Rodham; Douglas C. Kohlert; Jeff Jensen; Brett Ahlstrom; Mike Bastian; Darren Davis (CHI 95 Conference Companion, 1995)