Title :
Ultra-Precise Quartz Crystal Frequency Standards
Author_Institution :
Bell Telephone Labs., Whippany, N. J.
Keywords :
Aging; Circuit stability; Frequency; Heat transfer; Helium; Instruments; Land surface temperature; Nitrogen; Oscillators; Resonance;
Journal_Title :
Instrumentation, IRE Transactions on
DOI :
10.1109/IRE-I.1958.5006786
