TY - RPRT TI - Mercury Trapped Ion Frequency Standard for Ultra-Stable Reference Applications AU - Burt, Eric A. AU - Hamell, Robert L. AU - Tucker, Blake C. AU - Larsen, Kameron AU - Tjoelker, Robert L. PY - 2017 UR - https://ntrs.nasa.gov/citations/20170009528 ID - 20170009528 ER -