M.C. Sousa, F. Samavati, and M. Brunn.
Depicting Shape Features with Directional Strokes and Spotlighting
Computer Graphics International (CGI '04) 214-221

J. Brosz, F. Samavati, and M.C. Sousa.
Silhouette Rendering Based on Stability Measurement
20th ACM Spring Conference on Computer Graphics (SCCG '04)

K. Foster, M.C. Sousa, F. Samavati, and B. Wyvill.
Reverse Subdivision Multiresolution for Polygonal Silhouette Error Correction
4th Intl. Workshop on Computational Geometry and Applications (CGA '04) 247-256

K. Buchin, M.C. Sousa, J. Doellner, F. Samavati, and M. Walther.
Illustrating Terrains using Direction of Slope and Lighting
4th ICA Mountain Cartography Workshop (MCW '04)

B.R. De Araujo, J.A. Jorge, M.C. Sousa, F. Samavati, and B. Wyvill
MIBlob: A Tool for Medical Visualization and Modeling using Sketches
SIGGRAPH 2004 (poster #149 --"Biomedical Visualization")