@article{179196, author = {Vladislav Gerginov and Svenja Knappe and P Schwindt and V Shah and Leo Hollberg and John Kitching}, title = {Long-term frequency instability of atomic frequency references based on coherent population trapping and microfabricated vapor cells}, year = {2006}, number = {23}, month = {2006-04-01}, publisher = {Journal of the Optical Society of America B-Optical Physics}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50191}, language = {en}, }