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3. J. E. Barton and H. W. Patterson, “The Analysis of the Transient Pressure Response of the Shuttle EPS-ECS Cryogenic Tanks with External Pressurization Systems”, NASA CR-133962, Boeing, Houston (1973).
4. J. E. Barton and H. W. Patterson, “APOLLO Oxygen Tank Stratification Analysis”, NASA CR-115400, Boeing, Houston (1972).
5. J. A. Saxton, Two Fluid Model for Thermal Stratification in the “APOLLO Cryogenic Oxygen Tanks”, NASA CR-124753, Bellcom Inc. (1971).