Barbara Tversky James E. Corter Jeffrey V. Nickerson Doris Zahner Yun Jin Rho Transforming Descriptions and Diagrams to Sketches in Information System Design. 242-256 2008 Diagrams http://dx.doi.org/10.1007/978-3-540-87730-1_23 conf/diagrams/2008 db/conf/diagrams/diagrams2008.html#TverskyCNZR08