Title :
Hydrogen Standard Work at Goddard Space Flight Center
Author :
Peters, H.E. ; McGunigal, T.E. ; Johnson, E.H.
Keywords :
Automatic control; Circuit optimization; Hydrogen; Laboratories; Masers; NASA; Oscillators; Prototypes; Thermal conductivity; Thermal expansion;
Conference_Titel :
22nd Annual Symposium on Frequency Control. 1968
DOI :
10.1109/FREQ.1968.199728
