1. A Kalman Filter for Atomic Clocks and Timescales;breakiron;31st Annual Precise Time and Time Interval (PTTI) Meeting,2001
2. Kalman Plus Weights: A Timescale Algorithm;greenhall;31st Annual Precise Time and Time Interval (PTTI) Meeting,2001
3. Introduction to UTC(NIST);sherman;NIST Physical Measurement Laboratory Time and Frequency Division site,0
4. Timescale Research at the U.S. Naval Oservatory (USNO);matsakis;34th Annual Precise Time and Time Interval (PTTI) Meeting,2002