Evaluating the Quality of Learning in Computer Supported Co-Operative Learning. - D. R. Newman; Chris Johnson 004; Brian Webb; Clive Cochrane (J. Am. Soc. Inf. Sci., 1997)

Large-Scale Simulation and Visualization in Medicine: Applications to Cardiology, Neuroscience, and Medical Imaging. - Chris Johnson 004 (International Conference on Computational Science (1), 2001)