@article{799741, author = {H Xia and J Cirac and S Swartz and B Kohler and D Elliott and John Hall and P Zoller}, title = {Phase shifts and intensity dependence in frequencymodulation spectroscopy}, year = {1994}, number = {11}, month = {1994-01-01 00:01:00}, publisher = {Journal of the Optical Society of America B-Optical Physics}, language = {en}, }