@conference{62841, author = {Scott Diddams and K Vogel and Christopher Oates and E Curtis and W Lee and Wayne Itano and Robert Drullinger and James Bergquist and Leo Hollberg}, title = {All Optical Atomic Clocks Based on a Single Mercury Ion and Calcium Atoms}, year = {2001}, month = {2001-01-01}, publisher = {European Conf. on Time and Frequency , Besancon, -1}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105188}, language = {en}, }