Prototype design and initial test evaluation of a global-positioning-system time-transfer receiver (GPS TTR)

The measurement of time

Claude Audoin

An Assessment of Precision Time and Time Interval Science and Technology

National Research Council (US)

Laser physics at the limits

Dieter Meschede

The Quantum Beat

F.G. Major

Splitting the Second

A Jones

Atomic clocks of the National Bureau of Standards

The NIST atomic clock

A Comparison of intercontinental clock synchronization by VLBI and the NTS satellite

Lifetime and reliability of rubidium discharge lamps for use in atomic frequency standards