@conference{58461, author = {Thomas Parker and Steven Jefferts and Thomas Heavner}, title = {Medium-Term Frequency Stability of Hydrogen Masers as Measured by a Cesium Fountain}, year = {2010}, month = {2010-06-02}, publisher = {Proc. 2010 IEEE Intl. Freq. Cont. Symp., Newport Beach, CA}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906021}, language = {en}, }