A Goal-Directed Intermediate Level Executive for Image Interpretation. - Charles A. Kohl; Allen R. Hanson; Edward M. Riseman (IJCAI, 1987)

The image understanding environment program. - Joseph L. Mundy; Thomas O. Binford; Terrance E. Boult; Allen R. Hanson; J. Ross Beveridge; Robert M. Haralick; Visvanathan Ramesh; Charles A. Kohl; Daryl T. Lawton; Doug Morgan; Keith Price; Tom Strat (CVPR, 1992)

The development of the Image Understanding Environment. - Charles A. Kohl; Joe L. Mundy (CVPR, 1994)

Towards a Unified IU Environment: Coordination of Existing IU Tools with the IUE. - Charles A. Kohl; Jeffrey J. Hunter; Cynthia L. Loiselle (ICCV, 1995)