TY - CONF AU - Parker, Thomas C2 - IEEE Trans. Ultrason. Ferroelec. Freq. Cont., Besan{c-cedilla}on, FR DA - 1999-01-01 LA - en PB - IEEE Trans. Ultrason. Ferroelec. Freq. Cont., Besan{c-cedilla}on, FR PY - 1999 TI - Performance of a Hydrogen Maser Ensemble and Characterization of Frequency Standards UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105535 ER -