Assessing the Impact of Graphical Design Interfaces on Design Efficiency and Effectiveness. - Christopher B. Ligetti; Timothy W. Simpson; Mary Frecker; Russell R. Barton; Gary Stump (J. Comput. Inf. Sci. Eng., 2003)

Metamodel-Driven Design Optimization Using Integrative Graphical Design Interfaces: Results From a Job-Shop Manufacturing Simulation Experiment. - Christopher B. Ligetti; Timothy W. Simpson (J. Comput. Inf. Sci. Eng., 2005)

On the estimation of operations and maintenance costs for defense systems. - Jay D. Martin; Daniel A. Finke; Christopher B. Ligetti (WSC, 2011)