1. National Electrical Manufacturers Association Standard for Laminated Plastics. The G-10 tubing used was supplied by Richardson Company, 300 South Seventh Street, DeKalb, Ill 60115
2. Narmco 3170 epoxy resin with 7133 curing agent supplied by Crest Products Company, 14939 Dillow Street, Westminster, California 92683
3. Cryogenic Materials Data Handbook, AD609562;Schwartzberg,1968
4. Cryogenic Materials Data Handbook, AD609562;Schwartzberg,1968
5. Cryogenic Materials Data Handbook, AD609562;Schwartzberg,1968