A Visual Language for Image Processing. - Carla S. Williams; John Rasure (VL, 1990)

Visual language and software development environment for image processing. - John Rasure; Danielle Argiro; Tom Sauer; Carla S. Williams (Int. J. Imaging Syst. Technol., 1990)

An integrated data flow visual language and software development environment. - John Rasure; Carla S. Williams (J. Vis. Lang. Comput., 1991)

The State of the Art of Visual Languages for Visualization. - Carla S. Williams; John Rasure; C. Hansen (IEEE Visualization, 1992)