NASA Skylab I Airlock Module Thermal CapacitorSTAFFORD · American Institute of Aeronautics and Astronautics1972PDF287 KB
A Vacuum Airlock System with Positive Sample ControlBreedlove · American Institute of Physics1971PDF487 KB
Ultrahigh Vacuum Airlock for LEED and Auger SpectroscopyOno · AVS (American Vacuum Society)1973PDF612 KB