1. The forgotten tool: the design and use of molecular models;Francoeur;Social Studies of Science,1997
2. See, for example, Protein Explorer, a web-based protein-structure visualization system (http://molvis.sdsc.edu/protexpl/index.htm) and DeepView, a package developed and maintained by researchers for GlaxoSmithKline (http://www.expasy.ch/spdbv/)
3. Time-sharing on computers;Fano;Sci. Am.,1966
4. An outline of the requirements for a computer-aided design system;Coons;AFIPS Conference Proceedings,1963
5. Sketchpad: a man-machine graphical communication system;Sutherland;AFIPS Conference Proceedings,1963