TY  - RPRT
TI  - The single-engine claude cycle as a 4.2⁰ K refrigerator 
AU  - Muhlenhaupt, Richard C
PY  - 1967
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 354
DO  - 10.6028/NBS.TN.354
ER  -