TY  - RPRT
TI  - Refrigeration for cryogenic sensors and electronic systems 
AU  - Zimmerman, James Edward
AU  - Sullivan, D B
AU  - McCarthy, S E
PY  - 1981
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 607
DO  - 10.6028/NBS.SP.607
ER  -