Object oriented simulation for the U.S Army graves registration service. - Richard Helfman; Mark H. Ralston; J. Robert Suckling (WSC, 1987)

TED-Turbine Engine Diagnostics: A Practical Application of a Diagnostic Expert System. - Holly Ingham; Richard Helfman; Tim Hanratty; John Dumer; Edmund H. Baur (ICTAI, 1997)

Turbine Engine Diagnostics (TED): An Expert Diagnostic System for the M1 Abrams Turbine Engine. - Richard Helfman; Edmund H. Baur; John Dumer; Tim Hanratty; Holly Ingham (AAAI/IAAI, 1998)

Turbine Engine Diagnostics (TED). - Richard Helfman; Edmund H. Baur; John Dumer; Tim Hanratty; Holly Ingham (AI Mag., 1999)

Soldier-centric knowledge engineering: lessons from TED. - Tim Hanratty; Richard Helfman; John Dumer; Edmund H. Baur; Holly Ingham (IEEE Intell. Syst., 1999)