Flow-Based Automatic Generation of Hybrid Picture Mazes. - Fernando J. Wong; Shigeo Takahashi (Comput. Graph. Forum, 2009)

A Graph-based Approach to Continuous Line Illustrations with Variable Levels of Detail. - Fernando J. Wong; Shigeo Takahashi (Comput. Graph. Forum, 2011)

Hierarchical Design of Continuous Line Illustrations. - Fernando J. Wong; Shigeo Takahashi (GRAPP/IVAPP, 2013)

Abstracting images into continuous-line artistic styles. - Fernando J. Wong; Shigeo Takahashi (Vis. Comput., 2013)