@article{206941,
author = {Till Rosenband and P. Schmidt and David Hume and Wayne Itano and Tara Fortier and Jason Stalnaker and Scott Diddams and Jeroen Koelemeij and James Bergquist and David Wineland},
title = {Observation of the 1S0-3P0 clock transition in 27Al+},
year = {2007},
number = {98},
month = {2007-06-01},
publisher = {Physical Review Letters},
url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50513},
language = {en},
}