Evan S. Twyford

Evaluation of Hands-Free Devices for the Display of Maintenance Procedures

Mihriban Whitmore, Kritina Holden, Harry L. Litaker, 2007 .

Dual rover human habitation field study

Robert L. Howard, Richard Szabo, Harry L. Litaker, 2013 .

Evaluation of Hands-Free Devices for Space Habitat Maintenance Procedures

Harry L. Litaker, Ronald B. Hoffman, Evan S. Twyford, 2007 .

The Human as a System - Monitoring Spacecraft Net Habitable Volume throughout the Design Lifecycle

Richard Szabo, Jim Maida, Evan S. Twyford, 2007 .

Human habitation field study of the Habitat Demonstration Unit (HDU)

Richard Szabo, Harry L. Litaker, Evan S. Twyford, 2013 .