@article{63411, author = {Thomas Parker}, title = {Environmental Factors and Hydrogen Maser Frequency Stability}, year = {1999}, number = {46}, month = {1999-01-01}, publisher = {IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105536}, language = {en}, }