A. S. Johnston

Orbital Fluid Transfer System

Tony R. Tyler, A. S. Johnston, Mel Ryder, 1998 .

Testing of the Automated Fluid Interface System

Tony R. Tyler, A. S. Johnston, 1998 .

X-38 Bolt Retractor Subsystem Separation Demonstration

A. S. Johnston, Joseph Gaines, Fedoria Rugless, 2002 .

Design and Demonstration of Bolt Retractor Separation System for X-38 Deorbit Propulsion Stage

A. S. Johnston, Joseph Gaines, J. C. Garrison, 2003 .