Visual language for expressing transformations
Rieman, J. "Chemtrains", technical report, Computer Science Department, University of Colorado at Boulder
Bell, B., Rieman, J. and Lewis, C. (1991) Usability testing of a graphical programming system: things we missed in a programming walkthrough. Proceedings of ACM CHI'91 Conference on Human Factors in Computing Systems, pp 7-12. New York: ACM Press.
Bell, B. "Chemtrains: A rulebased visual language for building graphical simulations" Technical Report CUCS52992, US West Advanced Technologies, February 1992 view details
Bell, Brigham; Lewis, Clayton "ChemTrains: A Language for Creating Behaving Pictures" pp188-195 view details
in Proceedings of 1993 IEEE Symposium on Visual Languages (VL'93), Bergen, Norway, August 24-27, 1993. view details